Tool Holder Coolant Ejection Structure for Leak-Free Edge Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tool holders face challenges in efficiently and accurately supplying coolant to the flank and cutting edge due to coolant leakage and the difficulty in accommodating various cutting edge shapes, leading to inefficient cooling and reduced tool life.
Innovation Solution
A tool design featuring a coolant ejection member with a tubular portion and ejection hole that communicates with the coolant supply passage, preventing leakage by forming a hermetically sealed flow passage, and allowing for customizable shapes to match different cutting edges, ensuring efficient coolant delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plate-like member with a recess is used to supply coolant to the cutting edge, then the coolant can reach the cutting edge efficiently, but the coolant leaks in unintended directions from the gap between the tool body and the plate-like member
Solution Approach 1:
The invention extracts the coolant ejection function from the plate-like member structure and concentrates it into a dedicated tubular coolant ejection member with a precisely positioned ejection hole. This separation allows the coolant to be delivered through a controlled, sealed path directly to the cutting edge, eliminating the leakage issue caused by the gap between the tool body and the plate-like member while maintaining efficient coolant supply.
2Device complexity
If a fixed coolant supply structure is used, then the coolant supply path is simple, but it is difficult to accurately supply coolant to various indexable inserts with different cutting edge shapes
Solution Approach 1:
The invention makes the coolant supply system adaptable by allowing the tubular coolant ejection member to be detachably mounted on the tool body. This dynamic configuration enables the coolant ejection member to be replaced or adjusted according to different indexable inserts and cutting edge shapes, ensuring accurate coolant supply for various cutting operations without requiring a completely different supply structure for each case.
3Device complexity
If the ejection hole is positioned far from the cutting edge, then the structure is simpler, but the coolant cannot be accurately supplied to the flank and cutting edge
Solution Approach 1:
The invention positions the ejection hole in three-dimensional space adjacent to the flank and close to the cutting edge, utilizing spatial arrangement to achieve precise coolant delivery. The tubular structure allows the ejection hole to be located at an optimal position that is both accessible from the coolant supply passage and in close proximity to the cutting zone, ensuring accurate coolant supply without excessive structural complexity.
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 coolant leakage, allows for accurate and stable coolant supply to various cutting edges, enhancing cooling efficiency, cutting accuracy, and extending tool life without increasing coolant usage.
Implementation Method 1
the ejection hole of the coolant ejection member and the coolant supply passage communicate with each other through the tubular portion, the leakage of a coolant in an unintended direction from a portion other than the ejection hole is prevented
Implementation Method 2
a coolant, which flows in the coolant supply passage, is ejected to the flank and the cutting edge through the tubular portion and the ejection hole of the coolant ejection member
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An object of the invention is to provide a tool holder that can efficiently supply a coolant to a flank and a cutting edge by preventing the leakage of a coolant and can accurately and stably supply a coolant so as to correspond to the shapes of various cutting edges or the types of cutting. A face (7), a flank (8), and a cutting edge (5) forming an intersection ridge between the face (7) and the flank (8) are disposed at a leading end portion of a shaft-shaped tool body (31) in a tool holder (30). A coolant supply passage (36) is formed in the tool body (31), and a coolant ejection member (37) is detachably provided at the leading end portion of the tool body (31). The coolant ejection member (37) includes a tubular portion (43), and an ejection hole (46) that communicates with the coolant supply passage (36) through the inside of the tubular portion (43) and opens toward the flank (8) and the cutting edge (5).