Chuck Fluid Discharge Angle for Reduced Coolant Scattering
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Solution Overview
Problem
Existing chuck devices face challenges in effectively reducing the scattering of working fluid due to rotational forces, leading to inadequate supply to cutting tools, and increasing pressure resistance and manufacturing costs when attempting to improve fluid delivery.
Innovation Solution
The chuck device incorporates a passage with a discharge opening where the discharging direction of the working fluid is set opposite to the rotational direction and tilted at an angle θ, calculated using specific formulas, to minimize the influence of rotational forces, ensuring efficient fluid delivery to the cutting tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the discharging pressure of the working fluid is increased to reduce scattering, then the amount of working fluid reaching the cutting tool improves, but the pressure-resistant performance requirement and manufacture cost increase
Solution Approach 1:
The invention changes the discharging direction parameter by tilting it opposite to the rotational direction at a specific angle, rather than increasing pressure. This parameter change allows the working fluid to counteract rotational scattering forces, improving delivery efficiency without requiring higher pressure or more expensive pressure-resistant materials
Solution Approach 2:
The invention inverts the conventional approach by discharging the working fluid in the direction opposite to the rotational direction of the chuck device. This reverse discharging direction creates a counteracting effect against the rotational scattering force, enabling effective fluid delivery without increasing pressure
2Quantity of substance
If the discharging pressure of the working fluid is increased to reduce scattering, then the amount of working fluid reaching the cutting tool improves, but the working fluid may be bounced back from the cutting tool and scattered about
Solution Approach 1:
The invention changes the discharging direction parameter to tilt opposite to the rotational direction, which reduces fluid velocity requirements and prevents excessive pressure from causing bounce-back. The optimized direction ensures fluid reaches the cutting tool effectively without overwhelming it to the point of rebound
Solution Approach 2:
The invention replaces the mechanical approach of increasing pressure to overcome scattering with a directional approach. By tilting the discharge direction opposite to rotation, the system uses vector composition of velocities rather than brute force pressure, avoiding the bounce-back effect
3Device complexity
If the discharging direction is not appropriately set to counteract rotational forces, then the structure remains simple, but the amount of working fluid scattering increases
Solution Approach 1:
The invention optimizes the discharging direction parameter by tilting it at a specific angle opposite to the rotational direction. This simple parameter adjustment in the passage design effectively counteracts rotational scattering forces without adding complex mechanisms, maintaining structural simplicity while reducing fluid loss
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 allows for precise and effective reduction in fluid scattering, ensuring a substantial amount of working fluid is supplied to the cutting tool, even at high rotational speeds, without increasing manufacturing costs or fluid pressure.
Implementation Method 1
the discharging direction of the working fluid from the discharge opening is set opposite to a rotational direction of the cutting tool... it is possible to lessen the influence of the rotational force of the chuck device to the working fluid
Data Source
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AI summary
Provided is a chuck device that allows appropriate and easy setting of a discharging direction of working fluid. A chuck device configured to be attached to a spindle of a machine tool for gripping a cutting tool B, in which inside the chuck device, there are provided a passage 3b in which a working fluid flows and a discharge opening 3a provided at a leading end opening of the passage 3b through which the working fluid is discharged toward to the cutting tool B. A discharging direction of the working fluid from the discharge opening 3a is set opposite to a rotational direction Rd of the cutting tool B and set with a tilt of an angle θ calculated by a mathematical formula to a tangential direction of a rotation trajectory of the center of the discharge opening 3a relative to a direction of an axis of the cutting tool B.