Machining Tool Lateral Coolant Outlet Design
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Solution Overview
Problem
Existing machining tools face limitations in coolant flow rate due to small cross-sectional areas of coolant outlets, which restrict effective flooding of cutting edges and machining points, and often require complex production processes for clamping ribs with coolant bores.
Innovation Solution
The tool features a holder with a shank and a cutting insert receptacle, where coolant outlets are arranged on the workpiece-side end face alongside the receptacle, allowing for increased cross-sectional area and flow rate, and eliminating the need for bores in clamping ribs, with optional additional outlets for directed coolant jets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If coolant outlets are arranged in the cutting insert or directly above the receptacle, then directed coolant jet can be achieved, but the cross-sectional area of coolant outlets is limited and flow rate is restricted
Solution Approach 1:
The coolant outlets are positioned in a coolant outlet plane that is offset from the cutting insert plane, utilizing the lateral dimension alongside the receptacle rather than being confined to the cutting insert or directly above it. This dimensional shift allows for significantly larger cross-sectional areas while maintaining effective coolant delivery to the machining point through the lateral arrangement.
2Quantity of substance
If coolant outlets are arranged alongside the cutting insert receptacle with increased cross-sectional area, then coolant flow rate is enhanced, but the device structure becomes more complex
Solution Approach 1:
The holder structure is segmented into distinct functional zones: the cutting insert receptacle area and the coolant outlet area. The coolant outlets are arranged in a separate coolant outlet plane that is offset from the cutting insert plane, allowing independent optimization of each zone. This segmentation enables enhanced coolant flow through larger outlets without complicating the clamping rib structure, as the coolant bores are positioned in the holder body rather than integrated into the clamping rib itself.
3Reliability
If coolant bores are integrated into clamping ribs, then directed coolant delivery is achieved, but production process becomes complex
Solution Approach 1:
The coolant delivery function is extracted from the clamping rib structure and positioned in separate coolant bores within the holder body. The coolant outlets are arranged in a coolant outlet plane offset from the cutting insert plane, allowing coolant to be delivered to the machining point without requiring complex integration of coolant bores into the clamping rib. This separation simplifies the manufacturing process while maintaining reliable coolant delivery.
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 configuration enhances coolant flooding of cutting edges and machining points, increasing flow rate without the complexity of producing bores in clamping ribs, while maintaining tool width and allowing for tailored coolant distribution based on application parameters.
Implementation Method 1
a coolant bore (28), which opens out into a plurality of coolant outlets (44), that are arranged on the workpiece-side end face (16)
Implementation Method 2
the coolant is discharged in the direction of the cutting insert (14), in particular in the direction of an active cutting edge (22)
Implementation Method 3
coolant is discharged towards the cutting insert
Data Source
AI summary
A tool for machining a workpiece is presented. The tool has a cutting insert with at least one cutting edge, a holder having a shank, and a cutting insert receptacle, wherein the cutting insert receptacle is arranged in a region of a workpiece-side end face of the shank, and the cutting insert is disposed in the cutting insert receptacle. The holder has a coolant bore, which opens out into a plurality of coolant outlets. The plurality of coolant outlets are arranged on the workpiece-side end face of the shank, alongside the cutting insert receptacle, and are oriented such that coolant is discharged towards the cutting insert. At least some of the coolant outlets lie in a coolant outlet plane which runs parallel to and offset from a cutting insert plane running through the cutting insert receptacle, where the coolant outlet plane and the cutting insert plane run parallel to the longitudinal direction of the shank.