Cutting Tool Holder Integrated Coolant Duct Design
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Solution Overview
Problem
Existing cutting device holders face challenges with coolant supply, requiring external equipment and nozzles adjustments for different components, complicating tool changes and risking damage to external supply lines.
Innovation Solution
A holder design with a clamping gap that allows a coolant and/or lubricant duct to pass through, integrating the coolant supply directly into the holding part, enabling efficient delivery to the machining area without external equipment and simplifying tool assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external coolant supply is used to supply coolant to the machining area, then the coolant can be delivered to the work area, but the equipment complexity increases and the supply lines are vulnerable to damage
Solution Approach 1:
The coolant duct is integrated directly into the holding part structure, merging the coolant supply function with the mechanical holding structure. This eliminates external supply lines and reduces equipment complexity while maintaining reliable coolant delivery to the machining area through the beam part and overhang
Solution Approach 2:
The holding part itself acts as an intermediary carrier for the coolant duct, providing an internal pathway that connects the coolant source to the machining area without requiring external flexible hoses or complex routing through the clamping gap
2Ease of operation
If external coolant supply lines are used, then coolant delivery is possible, but the supply lines can be easily damaged
Solution Approach 1:
The coolant duct is merged with the rigid holding part structure, eliminating vulnerable external flexible supply lines. The coolant pathway becomes an integral, protected feature of the tool holder itself, resistant to damage during operation and tool changes
3Ease of operation
If a clamping gap is provided for elastic mobility of the clamping finger, then the clamping mechanism functions properly, but the coolant duct path becomes interrupted
Solution Approach 1:
The coolant duct is routed through the beam part and overhang structure, utilizing the three-dimensional space of the holding part rather than attempting to pass through the clamping gap plane. This allows the duct to bypass the gap entirely while still delivering coolant to the machining area
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 straightforward and efficient coolant/lubricant supply to the machining area, reducing equipment needs and tool change complexity while maintaining resilient clamping mobility.
Implementation Method 1
The clamping gap enables an elastic pivoting movement of the upper finger around a geometric axis, which runs transversely to the longitudinal direction through the beam part in the region of the rear end of the clamping gap
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The present invention relates to a cutting device (10) comprising a cutting insert (36) and a holding part (12) with a beam part (14), extending in a longitudinal direction (L), and a clamping head (26), which projects beyond an upper side (16) of the holding part (12) with a projection (28), wherein the projection (28) is connected to a first of two clamping fingers (30, 32), which between them form a receiving pocket (34) for receiving the cutting insert (36), wherein a clamping gap (44) is provided underneath the projection (28) to allow the first clamping finger (30) to be elastically movable, wherein the clamping gap (44) opens out into the receiving pocket (34), wherein the clamping gap (44) runs from an end face of the holding part (12) that is facing the workpiece to be worked in the longitudinal direction (L) up to the rear end (43) of said holding part, which rear end is arranged in the transitional region between the clamping head (26) and the beam part (14), wherein a coolant and/or lubricant guide (62, 64, 72, 76, 78) for feeding coolant and/or lubricant to a coolant and/or lubricant outlet (58) arranged in the projection (28) runs in the holding part (12), characterized in that the projection (28) extends with a continuing portion (48) in the longitudinal direction (L) beyond the rear end (43) of the clamping gap (44) and the coolant and/or lubricant guide (62) runs through the continuing portion (48).