Efficient Ring Mounting with Reduced Stress and High Precision
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Summary
Problems
Existing methods for assembling elastic rings on cylindrical components are inefficient due to high stress on fingers, complexity in alignment, and high moving mass, leading to potential misalignment and increased cycle times.
Innovation solutions
A ring assembly device with longitudinally movable fingers guided by gripper arms, where the fingers are positively connected to carriages for precise movement and reduced load, allowing for synchronized movement and simplified alignment, and a method involving the fingers penetrating the ring's surface, pivoting, and retracting to tension and apply the ring accurately.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a multi-finger gripper is used to expand and install the sealing ring, then the sealing ring can be installed on various components, but the device becomes relatively heavy and requires a lot of space
Why choose this principle:
The device is divided into two functional parts: stationary fingers that remain fixed to the housing, and movable gripper arms that pivot to perform the expansion motion. This segmentation eliminates the need for a heavy multi-finger gripper mechanism while maintaining the ability to install sealing rings on various components.
Principle concept:
If the fingers are rigidly attached to the gripper arm, then the structure is simple, but the fingers are subjected to high stress and may deform
Why choose this principle:
The fingers are made movable relative to the gripper arms through longitudinal movement capability. This dynamic design allows the fingers to adjust their position and reduce stress concentration during the expansion process, preventing deformation while maintaining structural simplicity.
Application Domain
Data Source
AI summary:
A ring assembly device with longitudinally movable fingers guided by gripper arms, where the fingers are positively connected to carriages for precise movement and reduced load, allowing for synchronized movement and simplified alignment, and a method involving the fingers penetrating the ring's surface, pivoting, and retracting to tension and apply the ring accurately.
Abstract
A ring mounting device for applying an elastic, closed circumferential ring (10) to the outer surface of a component (14) provides that at least two gripper arms (18) pivotable towards and away from each other are provided, each with a finger (16) attached to it, wherein the fingers (16) are slidably mounted in their longitudinal direction relative to the associated gripper arm (18). A corresponding method is also proposed.