Side Milling Cutter Coolant Chamber for Clog-Resistant Feed
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Solution Overview
Problem
Existing side milling cutters face challenges in effectively distributing coolant to blades, leading to potential clogging and reduced freedom in designing the disc-shaped cutter holder, which affects machining efficiency and versatility.
Innovation Solution
The side milling cutter features a main body with coolant feed channels that open into a common coolant distributing chamber, which branches into multiple coolant distributing channels on the disc-shaped cutter holder, ensuring reliable coolant delivery even if individual channels are clogged, and includes a central through opening for secure fastening and sealing to prevent coolant escape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual coolant feed channels are used to deliver coolant to blades, then the structure is simpler, but the system is vulnerable to clogging and lacks reliability
Solution Approach 1:
Multiple coolant feed channels are merged into a common coolant distributing chamber, which then distributes coolant through multiple coolant distributing channels. This merging approach ensures that if one channel is clogged, coolant can still reach the blades through other channels, thereby improving reliability without significantly increasing overall system complexity.
Solution Approach 2:
A common coolant distributing chamber is introduced as an intermediary component between the coolant feed channels and the coolant distributing channels. This intermediary chamber acts as a distribution hub that receives coolant from multiple feed channels and redirects it through multiple distributing channels to the blades, ensuring continuous coolant supply even when individual channels are blocked.
2Adaptability or versatility
If the disc-shaped cutter holder is designed with restricted freedom, then manufacturing is easier, but design flexibility and versatility are reduced
Solution Approach 1:
The cutter holder is segmented into functional zones: a central through opening for fastening and sealing, an annular region for coolant distribution, and outer regions for blade mounting. This segmentation allows each zone to be optimized independently - the central region provides secure fastening, the annular region enables flexible coolant channel configuration, and the outer regions accommodate various blade arrangements, thereby increasing design flexibility without compromising manufacturability.
Solution Approach 2:
The disc-shaped cutter holder is designed with multi-functionality: it serves as a mounting structure for blades, a sealing surface against the main body, a fastening interface through the central opening, and a coolant distribution platform with integrated channels. This universal design allows the same component to fulfill multiple functions, providing design flexibility while maintaining ease of manufacture through a unified structure.
3Productivity
If coolant distributing channels have small cross-sections, then the cutter holder structure is more compact, but flow resistance increases
Solution Approach 1:
The coolant distributing channels transition from a two-dimensional planar layout to a three-dimensional configuration by extending axially through the cutter holder thickness. The channels have inlet portions that extend over a part of the thickness and outlet portions on the outer circumference, creating a volumetric flow path that reduces flow resistance while maintaining a compact overall structure. This dimensional transition allows sufficient flow cross-section without increasing the cutter holder's radial or axial dimensions significantly.
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 design enhances coolant distribution homogeneity and reliability, reduces flow resistance, and allows for increased design flexibility of the cutter holder, improving machining efficiency and versatility by ensuring consistent coolant supply to cutting tool inserts.
Implementation Method 1
A plurality of coolant distributing channels for feeding coolant to the outer circumference of the cutter holder are configured in the disc-shaped cutter holder
Implementation Method 2
allows for increased design flexibility of the cutter holder, improving machining efficiency and versatility by ensuring consistent coolant supply to cutting tool inserts
Data Source
AI summary
A side milling cutter includes a main body extending along an axis from a first end with an interface for connection to a rotational drive to a free second end, receiving a bearing face for a disc-shaped cutter holder. The cutter holder is fastened to the second end and supported with a first main surface, facing the main body, on the bearing face, having an outer circumference projecting radially from the main body and a central through opening penetrating the cutter holder axially. Coolant feed channels feeding coolant to the second end are in the main body. Coolant distributing channels feeding coolant to the outer circumference of the cutter holder are in the cutter holder. At least two coolant distributing channels branch off from a common coolant distributing chamber between the main body and the cutter holder and into which at least two of the coolant feed channels open.