Adjustable Workpiece Holding Jig for Stable Cylindrical Conveyance
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Solution Overview
Problem
Existing workpiece holding jigs fail to effectively prevent workpieces from slanting or becoming misaligned during conveyance, especially when handling cylindrical workpieces with varying dimensions, which can lead to inefficiencies in manufacturing processes.
Innovation Solution
A workpiece holding jig with a base member and pairs of holding pieces arranged orthogonally to the conveyance direction, featuring holding recesses and upward extensions that fit or contact the workpiece's outer surface, allowing for secure alignment and preventing slanting, with at least one holding piece being movable to accommodate different dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fixed holding structures are used to prevent workpiece slanting, then alignment stability is improved, but adaptability to varying workpiece dimensions deteriorates
Solution Approach 1:
The holding piece is designed with movable components that can adjust their position dynamically. Specifically, the holding piece includes a movable portion that can shift along the conveying direction to adapt to different workpiece lengths, while maintaining stable contact with the workpiece to prevent slanting during conveyance.
Solution Approach 2:
The holding structure allows for parameter changes in its geometry and position. The holding piece can change its effective holding position and contact points based on the workpiece dimensions, enabling it to accommodate varying sizes while maintaining alignment stability through adjustable parameters.
2Manufacturing precision
If custom holding structures are designed for each workpiece dimension, then precision is improved, but device complexity increases
Solution Approach 1:
The holding piece is designed as a universal component that can handle multiple workpiece dimensions. It includes adjustable and movable portions that enable a single structure to perform the function of multiple specialized holders, reducing overall device complexity while maintaining alignment precision across different workpiece sizes.
Solution Approach 2:
The holding piece is segmented into functional portions: a fixed portion attached to the tray, a movable portion that can shift, and contact surfaces that adapt to workpiece geometry. This segmentation allows each portion to perform its specific function independently, achieving precision without requiring a completely custom structure for each workpiece type.
3Adaptability or versatility
If multiple fixed holding pieces are used to accommodate different dimensions, then adaptability is improved, but device complexity and cost increase
Solution Approach 1:
Instead of using multiple fixed holding pieces for different dimensions, the invention employs a single holding piece with dynamic, movable portions. These movable portions can shift and adjust their position along the conveying direction, enabling one component to replace multiple fixed components and reduce overall device complexity while maintaining dimensional adaptability.
Data Source
AI summary
A workpiece holding jig including a base member conveyed by a linear guide and at least one pair of holding pieces arranged on the base member in the direction crossing the conveying direction of the linear guide. Each of the at least one pair of holding pieces includes a workpiece holding portion that fits or contacts with the outer peripheral surface of a workpiece located between the at least one pair of holding pieces to prevent the workpiece from slanting or becoming misaligned during the conveyance. At least one of holding pieces in the at least one pair of holding pieces is movable in the direction away from the other.