Sliding Cutting Tool Coolant Sealing for Focused Edge Cooling
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Solution Overview
Problem
Existing metal cutting tools face inefficiencies in coolant supply, as the coolant spray is not optimally focused on the cutting edge due to the movable nature of the slider element, leading to unnecessary coolant usage and reduced effectiveness.
Innovation Solution
A sealed connection is established between the main tool body and the slider element through a clamping element and transfer element with sealing surfaces, ensuring a constant and focused coolant supply to the cutting edge by maintaining the relative position of the coolant channel exit and inlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the nozzle is fixed in the main tool body to supply coolant to the movable cutting edge, then the device structure is simple, but the coolant spray cannot be optimally focused on the cutting edge in all positions
Solution Approach 1:
The patent applies the dynamics principle by making the nozzle movable together with the cutting edge. The nozzle is integrated into the slider element, allowing it to move dynamically with the cutting edge along the adjustment direction. This ensures the nozzle maintains a constant relative position to the cutting edge at all times, enabling optimal coolant focus without requiring complex positioning systems.
Solution Approach 2:
The patent merges the nozzle with the slider element, creating an integrated coolant delivery system. The nozzle is positioned within the slider element such that it moves as a single unit with the cutting edge. This merging eliminates the need for separate positioning mechanisms and ensures consistent coolant application regardless of the slider's position.
2Reliability
If the nozzle is directed to cover all positions of the cutting edge, then the cutting edge is cooled in all positions, but more coolant than necessary has to be pumped through the nozzle
Solution Approach 1:
The patent applies local quality by directing the coolant spray precisely to the local area where the cutting edge is actually located. Since the nozzle moves with the cutting edge, the spray is consistently focused on the immediate vicinity of the cutting edge rather than dispersing over a wide area. This localized cooling approach maintains reliable cooling while minimizing coolant consumption.
3Stress or pressure
If a sealed connection is provided between the main tool body and slider element for high-pressure coolant, then high-pressure coolant supply is achieved, but the structure becomes more complex with clamping elements and sealing surfaces
Solution Approach 1:
The patent merges the sealing function into the existing clamping structure of the slider element. The clamping element that secures the slider to the tool body also serves to compress sealing surfaces, creating a sealed connection for high-pressure coolant. This dual-function approach achieves high-pressure coolant supply without adding separate sealing mechanisms.
Solution Approach 2:
The clamping element is designed with multi-functionality, serving both to mechanically secure the slider element and to create the sealed connection for coolant pressure. By making the clamping element universal, the patent avoids adding extra complexity while achieving the required high-pressure sealing capability.
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 a more efficient coolant delivery, reducing waste and ensuring consistent coolant coverage across the cutting edge, even during adjustments, while accommodating high-pressure coolant applications.
Implementation Method 1
there is provided a clamping element with which the first and the second sealing surfaces are pressable against each other, whereby a sealed connection between the outlet of the coolant channel of the main tool body and the inlet of the coolant channel of the slider element is provided
Implementation Method 2
an internal coolant supply being arranged to be able to supply coolant from the main tool body to the cutting edge
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a metal cutting tool (1) comprising a main tool body (2). The tool (1) further comprises a slider element (4, 6), which is received at least partially in an opening in the main tool body (2), is arranged movable relative thereto in an adjustment direction between a first and a second position and which has a cutting edge or is supporting a cutting insert (5) having a cutting edge. The tool (1) further comprises an internal coolant supply being arranged to be able to supply coolant from the main tool body (2) to the cutting edge and having a coolant channel (8, 10, 17) running within the main tool body (2) as well as within the slider element (4, 6). The main tool body (2), or a transfer element (7, 7') that has a coolant channel being part of the internal coolant supply and that is connected with the main tool body (2), comprises a first sealing surface on which an outlet of the coolant channel (8, 10, 17) of the main tool body (2) is arranged. The slider element (4, 6), or a transfer element (7, 7') that has a coolant channel being part of the internal coolant supply and that is connected with the slider element (4, 6), comprises a second sealing surface on which an inlet of the coolant channel of the slider element (4, 6) is arranged. There is provided a clamping element (14) with which the first and the second sealing surfaces are pressable against each other, whereby a sealed connection between the outlet of the coolant channel (8, 10, 17) of the main tool body (2) and the inlet of the coolant channel of the slider element (4, 6) is provided.