Machine Tool Coolant Filtration for Hard Microchip Removal
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Solution Overview
Problem
Existing chip processing devices for machine tools struggle to effectively collect and separate microchips with high hardness, such as glass or quartz, from coolant, leading to wear issues and reduced precision in machine tools.
Innovation Solution
A chip processing device comprising a flushing duct with an inclined V-shaped surface, a slope duct, a centrifugal separator device, and a coolant tank with primary and secondary filters, which together enhance coolant flow, separate microchips from coolant, and reuse refined coolant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple channel-shaped discharging path is used, then the device structure is simple, but microchips with high hardness are deposited or adsorbed in the path and cannot be discharged
Solution Approach 1:
The patent applies curvature by forming a streamlined bending portion at the corner where both inclined surfaces meet in the V-shaped cross-section. This curved transition prevents sharp corners where microchips would accumulate, allowing smooth flow of coolant and microchips through the discharging path, thereby resolving the contradiction between structural simplicity and discharge efficiency.
2Device complexity
If a simple conventional filter is used, then the filter structure is simple, but microchips with high hardness are not sufficiently filtered and penetrate into rotating or sliding parts
Solution Approach 1:
The patent divides the filtration function into multiple stages: a coarse filter for initial filtration and a fine filter for thorough filtration of microchips. This segmented approach ensures that even very fine microchips with high hardness are completely removed from the coolant before it returns to the machine tool, preventing penetration into rotating or sliding parts while maintaining reasonable structural complexity.
3Device complexity
If microchips with high hardness are not sufficiently separated, then the separation process is simple, but microchips penetrate into rotating or sliding parts and cause abrasion or wear
Solution Approach 1:
The patent replaces simple mechanical filtration with a centrifugal separator that uses centrifugal force to separate microchips from coolant. This mechanical substitution enables complete separation of even the finest microchips with high hardness, preventing them from penetrating into rotating or sliding parts and causing wear, while keeping the separation process relatively simple.
4Use of energy by moving object
If coolant is reused without sufficient filtration, then energy consumption is reduced, but microchips accelerate wear of rotating and sliding parts
Solution Approach 1:
The patent implements preliminary action by completely filtering microchips from the coolant before it is reused in the machine tool. The multi-stage filtration and centrifugal separation ensure that no microchips remain in the coolant, eliminating the risk of wear acceleration during reuse while maintaining energy efficiency through coolant recirculation.
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 device efficiently collects and separates microchips from coolant, preventing their penetration into machine tool parts and reducing wear, thereby extending the lifespan and maintaining precision of machine tools.
Implementation Method 1
a centrifugal separator device installed at one side of the coolant tank to separate the microchips included in the coolant
Implementation Method 2
one end portion of the flushing ducts inclinedly disposed and a lower cross-section thereof forms a V-shaped inclined surface, and a corner portion where both inclined surfaces meet forms a streamlined bending portion
Data Source
AI summary
A flushing duct is installed on both sides of a table of the machine tool in a longitudinal direction of the table, a slope duct is inclinedly disposed below the flushing duct toward the coolant tank, each bottom surface of the flushing duct and the slope duct is formed with a V-shaped inclined surface and a streamlined bending portion to make flows of the coolant containing the microchips smooth, and a coolant supply valve is installed at a rear end of the flushing duct to facilitate flows of the coolant being discharged by supplying additional coolant. Further, a coolant tank is installed below the slope duct, a filter is installed in the coolant tank for filtering the microchips in the coolant. The coolant containing the microchips is transported through a return pump to a centrifugal separator device where the microchips contained in the coolant are centrifugally separated. A refined coolant through centrifugal separation is supplied to the machine tool, thereby preventing abnormal wear due to penetration of the microchips into rotating and sliding portions of the machine tool.