Sealing Device for Coolant Channel Interfaces in Tool Systems
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Solution Overview
Problem
The interfaces of tool parts in tool systems pose challenges for sealing coolant and/or lubricant channels, leading to potential leaks and requiring additional measures for ensuring tightness.
Innovation Solution
A tool system with a sealing device that includes a section with an oversized outer diameter for the second tool part, ensuring a tight seal without the need for grinding contact surfaces, and utilizing a flange with internally threaded bores and screws for precise adjustment and tilting, along with O-rings for enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sealing methods are used at tool part interfaces, then additional devices or surface modifications (grinding) are required to ensure tightness, but this increases device complexity and manufacturing difficulty
Solution Approach 1:
The sealing device is nested within the coolant/lubricant channel structure itself. The second section of the sealing device protrudes into the second coolant channel section, utilizing the existing channel space for sealing functionality without requiring external sealing components or surface modifications.
Solution Approach 2:
The sealing device changes the dimensional parameter of the channel interface by having the second section with outer diameter equal to or greater than the inner diameter of the second coolant channel section. This parameter change creates an interference fit that ensures sealing tightness without additional sealing elements.
2Manufacturing precision
If grinding contact surfaces is performed to achieve low roughness, then sealing quality improves, but manufacturing time and complexity increase
Solution Approach 1:
The invention extracts the sealing function from the surface preparation process (grinding) and transfers it to the sealing device structure itself. The oversized second section provides the sealing action through its geometry rather than requiring ground surfaces, eliminating the need for post-manufacturing surface treatment.
3Reliability
If a tight seal is ensured by oversized second section, then gap formation is prevented, but the device requires precise dimensional control
Solution Approach 1:
The sealing device is designed with predetermined dimensions during manufacturing, where the second section's outer diameter is intentionally made equal to or greater than the second coolant channel section's inner diameter. This preliminary dimensional design ensures sealing capability is built into the component geometry, and the tiltable connection allows final adjustment to achieve the optimal seal.
4Measurement precision
If tool parts are connected in a tiltable manner for alignment, then concentricity can be adjusted, but interface sealing becomes more difficult
Solution Approach 1:
The sealing device incorporates a tiltable connection that allows dynamic adjustment during assembly. The device can be tilted relative to the tool parts to achieve proper alignment and concentricity, while the oversized second section maintains sealing contact throughout the adjustment range, ensuring both alignment precision and seal reliability.
Data Source
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AI summary
The application describes a device for sealing a cooling and/or lubricant channel 107, 110, wherein the cooling and/or lubricant channel 107, 110 extends through a first tool part 106, through a second tool part 101 and through the device 109, the device 109 comprising: a first section 602, 702, wherein the first section 602, 702 is connectable to the first tool part 106, a second section 604, 704, wherein the second section 604, 704 is arranged such that it can project into the cooling and/or lubricant channel 110 of the second tool part 101, wherein the outer diameter of the second section 604, 704 is greater than or equal to the inner diameter of the cooling and/or lubricant channel 110 of the second tool part 101, and a middle section 605, 705, wherein the middle section 605, 705 is arranged between the first section 602, 702 and the second section 604, 704.