Shared-Guide Positioning Unit for Precise Multi-Axis Motion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing positioning units require high design effort and manufacturing costs, especially when implementing multiple degrees of freedom or axes, which limits their efficiency and scalability.
Innovation Solution
A positioning unit with two control carriages and a work carriage, where all carriages are movably arranged on a shared guiding means, such as a guide rail, allowing for material savings and increased speed by compensating impulses and improving stability through shared components and flexible tension elements, and incorporating a control unit for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate guiding means are used for each carriage, then each carriage can be independently positioned, but the design effort and manufacturing costs increase significantly
Solution Approach 1:
The patent combines multiple separate guiding means into a single shared guiding structure that supports multiple carriages simultaneously. This merging approach reduces the total number of guiding components needed, thereby lowering design effort and manufacturing costs while maintaining the ability to independently position each carriage through individual drive mechanisms.
Solution Approach 2:
The shared guiding means is designed to serve multiple carriages simultaneously, making it a universal component that performs the positioning function for several carriages rather than requiring dedicated guiding structures for each carriage. This multi-functionality reduces overall system complexity while preserving independent carriage control.
2Adaptability or versatility
If more degrees of freedom or axes are realized, then the positioning capability is improved, but the manufacturing costs increase
Solution Approach 1:
The positioning system is segmented into multiple independent carriages that can each be controlled separately, allowing the system to achieve multiple degrees of freedom through coordinated movement of individual carriages rather than requiring complex integrated mechanisms. This segmentation enables versatile positioning capability while keeping individual components simpler and more cost-effective to manufacture.
Solution Approach 2:
The patent realizes additional degrees of freedom by adding carriages along the guiding means rather than complicating individual carriage mechanisms. This dimensional approach to adding capability—extending the system along the guide rail rather than increasing complexity within each carriage—enables versatile positioning while maintaining manufacturing simplicity.
3Productivity
If multiple carriages move in opposite directions, then the operational speed increases due to impulse compensation, but the system complexity increases
Solution Approach 1:
The patent converts the harmful effect of impulses generated by carriage acceleration and deceleration into a beneficial effect by having multiple carriages move in opposite directions. The impulses from carriages moving in opposite directions compensate for each other, reducing net vibrations and allowing higher operational speeds. This approach transforms a potential problem (impulses) into an advantage (speed enhancement) through clever system configuration.
Data Source
AI summary
A positioning unit includes two control carriages and a work carriage, it being possible to move the two control carriages and the work carriage on tracks that extend in parallel with one another. There is a working arm being articulated on a work base point on the work carriage and a control arm being articulated on a control base point on each of the control carriages. The control arms are articulated on the working arm at a control point of the working arm, the control point being spaced apart at a predefined lambda distance (d) from an end of the working arm that forms a working-point end and faces away from the work base point, and the two control base points and the work base point defining a triangle. At least two carriages of the two control carriages and the work carriage are movably arranged on a shared guide.