Wedge Drive Dovetail Guide for Lateral Thrust Compensation
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Solution Overview
Problem
Existing wedge drive systems face challenges in achieving high running accuracy, compensating for side shifts, and maintaining long service life while being cost-effective and easy to incorporate, especially under high press forces and in compact spaces.
Innovation Solution
A dovetail-like guide system for the movable slide element, where the slide element receptacle is designed as a corresponding counterpart, enabling self-centering and precise guidance, reducing the need for additional components and manufacturing complexity, and allowing for high press force transmission without lateral displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a linear guide with sliding plates is used to guide the slide element, then running accuracy is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the guidance function from a complex multi-component linear guide system and implements it through a simplified dovetail-shaped interface between the slide element receptacle and the movable slide element. This single integrated geometric feature provides both guidance and lateral thrust compensation without requiring separate sliding plates, adjustment mechanisms, or multiple guide components, thereby reducing device complexity while maintaining manufacturing precision.
2Reliability
If additional retaining elements and sliding plates are added to the guide system, then reliability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The patent merges the functions of retaining elements, sliding plates, and guidance features into a single dovetail-shaped geometric interface. The dovetail configuration inherently provides lateral thrust compensation and guidance stability without requiring separate retaining elements or sliding plates, thereby improving reliability through functional integration while significantly easing manufacturing and assembly processes.
3Manufacturing precision
If the guide system is designed to withstand high press forces with minimal play, then running accuracy is improved, but device complexity increases
Solution Approach 1:
The patent employs an asymmetric dovetail-shaped interface where the inclined surfaces are specifically configured to provide mechanical advantage under high press forces. The asymmetric geometry naturally prevents play and ensures minimal clearance while withstanding high loads, eliminating the need for complex pre-loading mechanisms or multiple adjustment components that would otherwise be required to achieve the same level of precision under high force conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a compact, cost-effective wedge drive with enhanced running accuracy, improved lateral thrust compensation, and extended service life, suitable for both small and large-format applications, while reducing assembly complexity and manufacturing tolerances' impact.
Implementation Method 1
The driver element usually has wedge bevels and is used with these in relation to the movable slide element as a drive element
Implementation Method 2
The dimensions of the pressure-transmitting surfaces, which are referred to as sliding surfaces, the respective inclinations of the linear guide in the slide element holder and the inclination of the driver element as well as the interaction of the surfaces and inclinations
Data Source
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AI summary
In the case of a wedge drive (1) with a slide element receptacle (2), a movable slide element (3) and a driver element (5), wherein sliding surfaces (301, 302) are provided between the slide element (3) and the driver element (5), a dovetail-like or prismatic guiding device (6) is provided between the slide element (3) and the slide element receptacle (2).