Modular Rotary Tool Carrier Cooling Channel Segmentation
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Solution Overview
Problem
Modular rotary tools face reduced service life due to coolant/lubricant escape at the cutting-head end surface when there is no material contact with a workpiece, leading to inadequate cooling and lubrication of the cutting head and carrier.
Innovation Solution
Integration of a cooling structure with two outlet openings in the carrier, including a first outlet opening in the coupling receiving means and a second outlet opening in the flute, allowing for flexible coolant/lubricant flow adjustment via a branch channel, ensuring reliable cooling and lubrication even when the cutting head has no integrated cooling structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If coolant channels are aligned with the cutting-head end surface, then cooling is effective when material contact occurs, but coolant escapes without cooling the carrier when no material contact occurs
Solution Approach 1:
The single coolant outlet is segmented into two separate outlet openings: a first outlet opening in the coupling receiving means for directing coolant to the cutting head, and a second outlet opening in the flute for directing coolant along the carrier. This segmentation ensures that coolant is distributed to both cooling locations simultaneously, resolving the contradiction between cooling the cutting head and cooling the carrier.
Solution Approach 2:
Different regions of the cooling system are given different functions: the first outlet opening provides coolant flow targeted at the cutting head end surface, while the second outlet opening provides coolant flow targeted at the carrier flute region. This local differentiation ensures that each component receives appropriate cooling regardless of material contact conditions.
2Device complexity
If a single outlet opening is used, then the structure is simple, but cooling coverage is insufficient when cutting head has no integrated cooling structures
Solution Approach 1:
The cooling system is segmented into two outlet openings positioned at different locations: one in the coupling receiving means and one in the flute. This segmentation allows the system to provide comprehensive cooling coverage without requiring complex integrated cooling structures in the cutting head, as the carrier itself becomes a cooling pathway.
Solution Approach 2:
The flute structure is given a dual function: it serves both as a chip evacuation pathway and as a coolant delivery channel through the second outlet opening. This multi-functionality allows the system to maintain simple structure while achieving reliable cooling coverage in all operating 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
The modular rotary tool achieves reliable cooling and lubrication of both the carrier and cutting head, enhancing service life by automatically adjusting coolant/lubricant flow based on the cutting head's presence, particularly in applications with no material contact.
Implementation Method 1
a cooling structure with at least one coolant channel, through which a coolant/lubricant transport takes place during operation
Implementation Method 2
a branch channel, which is spaced apart from the coupling receiving means and which opens into the coolant channel on the one hand and terminates at a second outlet opening in the flute on the other hand
Implementation Method 3
ensuring reliable cooling and lubrication even when the cutting head has no integrated cooling structures
Data Source
AI summary
The invention relates to a modular rotary tool, which extends along an axis of rotation (6) in the longitudinal direction and which has a carrier provided with flutes as well as a cutting head exchangeably secured on said carrier, wherein the carrier has on the end surface a coupling receiving means for receiving a coupling pin of the cutting head, wherein in the carrier, a coolant channel is formed, which terminates at a first outlet opening in the coupling receiving means, and wherein a branch channel is provided, which is spaced apart from the coupling receiving means and which opens into the coolant channel at one end and terminates at a second outlet opening in the flute at the other end.