Tool Holder Damping Structure With Self-Regulating Sealing Rings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing damping apparatuses for tool-holding systems require manual adjustment to achieve optimal vibration damping, which is prone to misadjustment and variability in damping properties.
Innovation Solution
The use of elastically deformable sealing rings with material bonds to the bearing pin and bush, creating a resilient intermediate region that determines the damping characteristics, allowing for predictable and reproducible damping without manual adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustment mechanisms (O-rings with adjusting screws) are used to optimize damping properties, then vibration damping effectiveness can be improved, but device complexity and ease of operation deteriorate due to difficult adjustment and misadjustment risks
Solution Approach 1:
The damping apparatus automatically adjusts and maintains optimal damping properties through the elastic sealing rings that self-regulate the annular space dimensions. The system serves itself by using the natural elastic deformation of the sealing rings under operational conditions to maintain the optimal gap between bearing pin and bearing bush, eliminating the need for manual adjustment by the user.
Solution Approach 2:
The invention changes the physical state of the sealing rings from rigid to elastically deformable, allowing the annular space dimensions to automatically adapt to operational conditions. The elastic sealing rings change their deformation state based on the damping body's movement, automatically maintaining optimal damping characteristics without manual intervention.
2Adaptability or versatility
If adjustable damping mechanisms are implemented, then adaptability to different vibration conditions is improved, but manufacturing precision and reliability worsen due to misadjustment risks and variability
Solution Approach 1:
The damping apparatus automatically adjusts and maintains optimal damping properties through the elastic sealing rings that self-regulate the annular space dimensions. The system serves itself by using the natural elastic deformation of the sealing rings under operational conditions to maintain the optimal gap between bearing pin and bearing bush, eliminating the need for manual adjustment by the user.
3Reliability
If sealing rings are used to enclose damping fluid, then reliability is improved by preventing leakage, but device complexity increases due to additional sealing components
Solution Approach 1:
The sealing rings perform multiple functions simultaneously: they seal the damping fluid to prevent leakage, provide the elastic deformation necessary for automatic damping adjustment, and maintain the optimal annular space dimensions. This multi-functionality eliminates the need for separate adjustment mechanisms, reducing overall device complexity while improving reliability.
Solution Approach 2:
The invention merges the sealing function with the damping adjustment function into a single integrated component - the elastic sealing ring. By combining these functions, the patent eliminates the need for separate adjustment mechanisms and reduces the number of components, thereby simplifying the overall device structure while maintaining or improving reliability.
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
Ensures reliable sealing and calculable damping properties, eliminating the risk of fluid leakage and the need for user-adjustment, enabling consistent vibration damping across multiple units.
Implementation Method 1
an annular space that is filled with a damping fluid
Implementation Method 2
two elastically deformable sealing rings arranged at an axial distance from each other
Data Source
AI summary
A damping apparatus is provided for damping vibrations of a tool-holding apparatus during machining of a workpiece. The damping apparatus comprises a damping body having two ends on which a respective damping device is arranged, which comprises a bearing pin rigidly connected to the damping body and a bearing bush that surrounds the bearing pin in the circumferential direction. An annular space filled with a damping fluid is arranged between the bearing pin and the bearing bush, which annular space is sealed in the axial direction by two elastically deformable sealing rings. The two sealing rings each comprise first and second abutment regions as well as a resilient intermediate region arranged therebetween. The first abutment region is bonded to the bearing pin and the second abutment region is bonded to the bearing bush. The intermediate region is elastically deformable relative to the bearing pin and the bearing bush.