Common-Guide Positioning Carriage Layout for Stable Fast Motion
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Solution Overview
Problem
Existing positioning units require high design effort and production costs, especially when implementing multiple degrees of freedom, and existing alternatives are either complex or costly.
Innovation Solution
A positioning unit with two control slides and a work slide, where the control slides and work slide are parallel, sharing a common guide, allowing for multiple carriages to use the same guidance, reducing material usage and increasing operational speed by compensating for movement pulses, and incorporating flexible support arms and a pulse decoupling device for improved stability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent working arms are used instead of control arms articulated to a single working arm, then positioning flexibility is improved, but device complexity and manufacturing costs increase
Solution Approach 1:
The patent merges multiple control functions into a single working arm structure. Control arms are articulated to this one working arm at control points spaced at lambda distances, allowing multiple degrees of freedom to be controlled through a unified structure rather than requiring multiple independent working arms. This reduces device complexity while maintaining positioning flexibility.
Solution Approach 2:
The working arm structure serves multiple functions simultaneously: it acts as both a positioning element and a support structure for multiple control arms. The control arms articulated at different lambda distances along the working arm enable versatile positioning control without requiring separate structures for each degree of freedom.
2Manufacturing precision
If separate guides are used for each carriage, then positioning precision is improved, but material usage and manufacturing costs increase
Solution Approach 1:
The patent combines multiple guide functions into a single common guide structure. Two control carriages and one working carriage all move along the same guide, eliminating the need for separate guides for each carriage. This reduces material usage while the guide maintains sufficient precision for all moving components through proper design and positioning.
Solution Approach 2:
The common guide serves multiple functions: it guides the movement of two control carriages and one working carriage simultaneously. The guide is designed to accommodate different carriages with different masses and movement requirements, providing universal support and precision guidance for all components.
3Productivity
If carriages move in opposite directions simultaneously, then operational speed is improved, but impulse interference and stability worsen
Solution Approach 1:
The patent converts the harmful impulse interference caused by simultaneous opposite-direction movement into a beneficial effect. By using a common guide structure, the impulses generated by carriages moving in opposite directions cancel each other out, reducing overall system vibrations and improving stability. The guide design incorporates features to absorb and dampen remaining impulses, transforming potential instability into enhanced operational performance.
Data Source
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AI summary
The invention relates to a positioning unit (1, 101, 201, 301) comprising two control slides (2, 3, 202, 203, 502) and a working slide (4, 204, 304, 404), - the two control slides (2, 3, 202, 203, 502) and the working carriage (4, 204, 304, 404) can be moved on paths which run parallel to one another, - a working arm (5, 305, 405) is articulated at a working base point (8, 308) and a control arm (6, 7) is articulated on each of the control slides (2, 3, 202, 203, 502) at a respective control base point (9, 10), - wherein the Control arms (6, 7) are articulated at a control point (11) of the working arm (5, 305, 405) on this, the control point (11) forming a predefined lambda distance (d) from a working point end (12), the Working foot point (8, 308) is spaced away from the end of the working arm (5, 305, 405), and - the two control foot points (9, 10) and the working foot point (8, 308) form a triangle call The invention is characterized in that at least two carriages of the two control carriages (2, 3, 202, 203, 502) and the working carriage (4, 204, 304, 404) are movably arranged on a common guide (13, 213, 513). .