Coolant Distributor Oblique Outflow Uniform Bore Cooling
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Solution Overview
Problem
Existing coolant and lubricant distribution systems for cutting heads fail to ensure uniform cooling, lubrication, and chip disposal during machining operations, particularly in blind and through-bores, due to inadequate thermal energy absorption and friction reduction.
Innovation Solution
A coolant distributor with a design that includes feed passages, deflecting elements, and obliquely oriented outflow passages to simulate the reflection of the cooling lubricant flow, ensuring uniform wetting of cutting edges and bore walls, and allowing the same cutting head to be used for both blind and through-bores by directing the cooling lubricant with centrifugal force and pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional coolant distribution systems are used, then the cutting head can be used for both through-bores and blind bores, but uniform distribution of coolant and lubricant to cutting edges and bore wall is not sufficiently ensured
Solution Approach 1:
The coolant distributor is divided into multiple outflow passages (at least two) arranged to direct coolant onto different portions of the cutting head. Each outflow passage serves a specific zone, ensuring comprehensive and uniform coverage of cutting edges and bore wall regardless of whether machining a through-bore or blind bore.
Solution Approach 2:
Different outflow passages are positioned to deliver coolant to specific local areas of the cutting head. The deflecting elements are strategically placed within individual feed passages to redirect coolant flow to particular outflow passages, creating localized cooling zones that collectively achieve uniform overall distribution.
2Ease of manufacture
If coolant flows directly through the cutting head during through-bore finishing, then the process is simple, but thermal energy absorption and friction reduction are insufficient
Solution Approach 1:
The deflecting elements are pre-positioned within the feed passages to intercept and redirect coolant flow before it reaches the outflow passages. This preliminary redirection ensures that coolant is optimally directed onto the cutting head surfaces that require cooling and lubrication, maximizing thermal energy absorption and friction reduction effectiveness.
Solution Approach 2:
The deflecting elements act as intermediary components between the feed passages and outflow passages. They mediate the coolant flow by redirecting it from its direct path into the outflow passages, ensuring that coolant is delivered to the correct locations on the cutting head for effective cooling and lubrication.
3Device complexity
If a single coolant distributor design is used for both through-bores and blind bores, then device complexity is reduced, but optimal cooling and lubrication for both operations cannot be achieved
Solution Approach 1:
The coolant distributor is designed with multiple outflow passages and strategically positioned deflecting elements that can adaptively serve both through-bore and blind bore operations. By configuring the outflow passages to cover different zones and using deflecting elements to redirect flow as needed, a single distributor design achieves optimal cooling and lubrication for both machining operations.
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
Enhances cooling and lubricating properties, improves chip transport, and ensures uniform distribution of coolant and lubricant, effectively managing thermal loads and friction in machining operations.
Implementation Method 1
the cooling lubricant jet striking the bottom of the bore is reflected in the direction of the cutting head
Implementation Method 2
the cooling lubricant passes into the respective outflow passage and is directed from there onto the cutting edges of the cutting head by means of the cooling lubricant pressure, which acts during the operating state, and by means of the centrifugal force
Implementation Method 3
the cooling lubricant acts to absorb thermal energy in the form of heat
Implementation Method 4
a combined coolant and lubricant, for example a cooling lubricant, is provided to said cutting heads
Implementation Method 5
reduces the heat caused by friction by forming a lubricating film
Data Source
AI summary
A coolant distributor for use with a cutting head of a machine tool that is adapted to be rotated about a rotational axis. The coolant distributor comprises a generally cylindrical body adapted to be coupled to the cutting head about the rotational axis, the generally cylindrical body having a first end and an opposite second end, the first end being disposed adjacent the cutting head when the generally cylindrical body is coupled to the cutting head. At least one feed passage is formed in the generally cylindrical body, the feed passage having a first end disposed proximate the first end of the generally cylindrical body and a second end disposed proximate the second end of the generally cylindrical body. A deflecting element is disposed in the feed passage proximate the second end of the feed passage. An outflow passage is connected to the feed passage and disposed obliquely to the rotational axis.