Shrink-Fit Chuck Cooling Layout for Even Coolant Distribution
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Solution Overview
Problem
Existing shrink chucks face challenges in achieving optimal and cost-effective tool cooling due to limitations in coolant distribution and manufacturing tolerances, which can result in coolant loss and inefficient cooling.
Innovation Solution
The shrink chuck design features offset outlet openings in the circumferential direction of the receiving body, a ring web that follows deformation, and a cover disk connection for efficient coolant distribution and minimal gap between the ring web and tool shank, allowing targeted coolant delivery without loss, with adaptable outlet openings and coolant supply channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If outlet openings are aligned with coolant supply channels, then coolant delivery is straightforward, but coolant distribution is uneven and storage space is wasted
Solution Approach 1:
The outlet openings are deliberately positioned offset from the coolant supply channels in the circumferential direction. This asymmetric arrangement allows coolant to travel through the storage and collection chamber, improving distribution efficiency and utilizing the available space optimally, while maintaining a manageable structural complexity
2Manufacturing precision
If annular web inner diameter matches receiving opening inner diameter, then gap between web and tool shank is minimized, but manufacturing precision requirements increase
Solution Approach 1:
The annular web is designed with its inner diameter matching the receiving opening inner diameter specifically at the critical interface where the tool shank passes through. This localized dimensional matching minimizes the gap between the web and tool shank, improving cooling efficiency without requiring high precision across the entire web structure
3Reliability
If cover plate is permanently connected to receiving body, then connection reliability increases, but assembly complexity increases
Solution Approach 1:
The cover plate is permanently connected to the receiving body through welding or similar permanent joining methods. This merging of components ensures reliable fixation with low probability of failure, while the modular design allows the cover plate to be manufactured separately and attached in a single welding operation, keeping the assembly process manageable
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 design ensures effective and even coolant distribution, minimizing gaps and coolant loss, enabling efficient tool cooling while allowing for cost-effective production and adaptation to various tool sizes and shapes.
Implementation Method 1
During the heating and cooling required to shrink the tool into the holder body 2
Implementation Method 2
During the heating and cooling required to shrink the tool into the holder body 2
Implementation Method 3
a coolant can be guided into the storage and collection space 7 via the bores 6 and the coolant supply channels 10
Data Source
Figure 1~4
Figure 5~8
AI summary
The invention relates to a shrink-fit chuck (1) with a receiving body (2), a receiving opening (3) arranged in the receiving body (2) for a tool shank, a storage and collection chamber (7) arranged in the front region of the receiving opening (3), and at least one coolant supply channel (10) leading to the storage and collection chamber (7), wherein the storage and collection chamber (7) is bounded at the front by an annular web (8) arranged at the front end of the receiving opening (3). According to the invention, the inner diameter of the annular web (8) is adapted to the inner diameter of the receiving opening (3) such that there is as little an annular gap as possible between the annular web (8) and the tool shank, wherein several outlet openings (5) are provided in the annular web (8) for the outlet of coolant, which is directed into the storage and collection chamber (7) via the coolant supply channel (10), to the outside.