Modular Work Positioner Structure for Precise Multi-Size Fixturing
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Solution Overview
Problem
Conventional work positioners are inefficient as they require multiple designs for different workpieces of varying shapes and sizes, often resulting in excessive size that compromises processing accuracy and efficiency.
Innovation Solution
A work positioner with a split support column structure and adjustable base components, allowing for the retention of multiple workpieces by varying the distance between the rotation axis and the base, using a combination of support columns and rail systems to accommodate different sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a work positioner is designed to be adapted to a specific shape and size of workpiece, then processing accuracy is improved, but versatility deteriorates requiring multiple positioners for different workpieces
Solution Approach 1:
The support column is divided into multiple column pieces that can be selectively assembled. This segmentation allows the work positioner to be reconfigured for different workpiece sizes and shapes while maintaining processing accuracy, eliminating the need for multiple dedicated positioners
Solution Approach 2:
The work positioner incorporates adjustable and reconfigurable components including the segmented support column, adjustable base components, and repositionable work retaining portion. These dynamic elements enable the system to adapt to various workpiece configurations while preserving manufacturing precision through proper adjustment and positioning
2Adaptability or versatility
If a work positioner is designed to handle multiple workpieces different in shape and size, then versatility is improved, but device size increases becoming excessively large
Solution Approach 1:
By segmenting the support column into multiple column pieces that can be selectively assembled, the design achieves versatility for handling multiple workpiece types without requiring a fully oversized structure. Only the necessary column pieces are assembled for each specific task
Solution Approach 2:
The work positioner employs universal components including the segmented support column, adjustable base, and reconfigurable work retaining portion that can accommodate various workpiece types. This multi-functionality is achieved through adjustment mechanisms rather than through increasing overall device volume
3Adaptability or versatility
If a work positioner is designed to handle multiple workpieces different in shape and size, then versatility is improved, but processing accuracy deteriorates due to excessive size
Solution Approach 1:
The segmented support column allows precise adjustment of the work retaining portion position relative to the base, maintaining processing accuracy while accommodating different workpiece sizes. The column pieces can be selectively assembled to achieve the optimal positioning for each workpiece type
Solution Approach 2:
The work positioner applies local quality by allowing specific portions (work retaining portion, support column segments) to be adjusted and optimized for each workpiece type while keeping other components fixed. This localized adaptability maintains overall processing accuracy
4Manufacturing precision
If multiple work positioners are designed for different workpieces, then processing accuracy for each workpiece is improved, but device complexity increases requiring multiple operations to design work positioners
Solution Approach 1:
A single work positioner design with universal components (segmented support column, adjustable base, reconfigurable work retaining portion) replaces the need for multiple dedicated positioners. This universal design maintains processing accuracy for different workpieces while significantly reducing design complexity and the number of design operations required
Data Source
AI summary
A work positioner includes a first work retaining portion for retaining a first workpiece, a first drive portion for outputting a first rotational force about a first rotation axis and imparting a first angular movement about the first rotation axis to the first work retaining portion, a bearing portion supporting the first work retaining portion in cooperation with the first drive portion, a base arranged away from the first rotation axis, a first support column extending along a first support axis extending from the base toward the first rotation axis and supporting the first drive portion, and a second support column extending along a second support axis extending between the base and the first rotation axis so as to be parallel to the first support axis and supporting the bearing portion. The first support column includes a plurality of first support column pieces arranged along the first support axis.