Tool Holder Cooling Lubricant Filter Placement
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Solution Overview
Problem
Existing cooling lubricant supply systems for tool holders are prone to damage, incur additional manufacturing costs due to complex designs, and allow contaminants to enter the system during handling, hindering clamping and coupling processes.
Innovation Solution
A compact cooling lubricant supply system with a filter arranged at a defined distance behind the inlet opening in the central cooling lubricant channel, which collects impurities and is protected from external damage, eliminating the need for additional clamping elements and simplifying handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover with a sieve is arranged at the inlet opening to prevent chips from entering the coolant channel, then contamination is filtered out, but the device complexity increases due to additional clamping elements and annular grooves
Solution Approach 1:
The filter is extracted from the inlet opening area and relocated to a position downstream in the central cooling lubricant channel. This eliminates the need for covers, sieves, and clamping elements at the inlet, while the filter still performs its contamination prevention function in the coolant flow path.
Solution Approach 2:
Instead of placing the filter at the inlet opening (traditional approach), the filter is positioned downstream in the channel. This inverted placement achieves the same contamination prevention goal while simplifying the overall structure and eliminating additional components.
2Reliability
If a clamping element is used to hold the screen in the coolant channel, then the screen is secured, but manufacturing costs increase due to additional components and annular grooves
Solution Approach 1:
The clamping element and annular groove components are completely removed from the design. The filter is secured through alternative means (such as interference fit or retaining features integrated into the filter itself), eliminating the need for separate clamping elements and reducing manufacturing complexity.
3Object-affected harmful factors
If the screen and clamping element are arranged at the inlet opening, then contamination is filtered, but handling safety decreases due to easy accessibility and risk of damage
Solution Approach 1:
The filter is extracted from the vulnerable inlet opening position and relocated to a protected position downstream in the central cooling lubricant channel. This location is less accessible from the outside, protecting the filter from damage during handling and coupling operations while maintaining its filtration function.
4Object-affected harmful factors
If chips are retained by the cover at the inlet opening, then contamination is prevented from entering the coolant channel, but productivity decreases due to chips accumulating and hindering clamping and coupling
Solution Approach 1:
The filter is relocated from the inlet opening to a downstream position in the central cooling lubricant channel. This prevents chips and contaminants from accumulating at the inlet opening and blocking the clamping and coupling interfaces, thereby maintaining productivity while still filtering the coolant.
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 solution effectively prevents contaminants from entering the tool holder's interior, reduces manufacturing costs, and enhances handling safety by protecting the filter from damage and allowing for easier assembly, thereby ensuring reliable operation.
Implementation Method 1
a filter (30) arranged in the central cooling lubricant channel (10) in the direction of flow of the cooling lubricant at a defined distance behind the inlet opening (21) of the central cooling lubricant channel (10)
Data Source
Figure 1a~1b
Figure 2~5
Figure 6a~6b
AI summary
The invention relates to a cooling lubricant supply system for routing a cooling lubricant from a spindle-side infeed point of a machine tool through a central cooling lubricant channel (10; 110; 210) in a tool holder (1; 101; 201) to a tool (60) clamped in the tool holder (1; 101; 201), wherein a filter (30; 130; 230) is arranged in the central cooling lubricant channel (10; 110; 210) in order to filter out contaminants contained in the cooling lubricant. According to the invention, the filter (30; 130; 230) is arranged a defined distance, in the direction of cooling lubricant flow, downstream of the inlet opening for the central cooling lubricant channel (10; 110; 210) in such a manner that a retention space (11; 111; 211) for holding contaminants retained by the filter (30; 130; 230) is created in the central cooling lubricant channel (10; 110; 210).