Dual-Holder Positioning Mechanism for Stable Compact Holding
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Solution Overview
Problem
Existing holding apparatuses face instability when downsizing drivers, leading to unstable holding of moving bodies, especially in narrow spaces, as the output decreases and stability is compromised.
Innovation Solution
The holding apparatus employs a dual-holder mechanism with drivers connected via links to adjust positions in multiple directions, using a controller to manage driver operations and maintain stability through imaginary plane calculations, allowing for compact design without compromising holding stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the drivers are downsized to make the holding apparatus compact, then the apparatus can be provided in a narrow space, but the output of the holding apparatus decreases and the holding of the moving body becomes unstable
Solution Approach 1:
The holder is divided into multiple holders (first holder and second holder) that are separated from each other. Each holder independently holds the moving body, distributing the holding task across multiple units. This segmentation allows the apparatus to maintain stable holding capability even when individual drivers are downsized, as the combined effect of multiple holders compensates for the reduced output of each driver.
Solution Approach 2:
Multiple holders are combined to work together on holding the moving body. The first holder and second holder operate simultaneously, merging their holding forces to achieve stable positioning. This combining approach allows the system to achieve the output of a larger single driver through the collective action of multiple smaller drivers.
2Length of moving object
If the drivers are downsized, then the holding apparatus becomes compact, but the output decreases leading to unstable holding
Solution Approach 1:
The holding function is segmented across multiple holders, each driven by smaller drivers. The total holding power is distributed across these segments, allowing the apparatus to be compact while maintaining sufficient overall output through the combined capability of multiple holders working in parallel.
Solution Approach 2:
The solution transitions from a single-holder configuration to a multi-holder configuration, adding spatial distribution as a new dimension. Instead of increasing the size of a single driver, the system uses multiple smaller drivers arranged in space, achieving the required output through spatial distribution rather than individual component size.
Data Source
AI summary
According to one embodiment, a holding apparatus holds a moving body and changes a position of the moving body in a second direction perpendicular to a surface of a columnar body. The surface of the columnar body extends in the first direction. The moving body is movable along the first direction. The apparatus includes first and second holders separated from each other. The first holder includes first and second portions separated from each other, and a third portion. The second holder includes fourth and fifth portions separated from each other, and a sixth portion. The moving body is held by the first and second holders in a state in which the moving body is at a hold position. The hold position is where the moving body opposes the third and sixth portions and is between the first and second portions and between the fourth and fifth portions.