Adjustable Wedge Drive Guide for Precise Clearance Control
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Solution Overview
Problem
Existing wedge drives face challenges in adjusting guide play without replacing parts, as worn sliding surfaces require new, precisely fitting guide elements, leading to high production costs and complexity due to the need for exact angle maintenance.
Innovation Solution
An adjustable guide device with a retaining clip and adjustment surface, allowing for the adjustment of guide play by moving a guide part along a positive guide surface, where the normal vector of the guide surface is oblique to the movement plane, reducing the precision required for production and enabling adjustments over the entire length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If grinding is used to adjust guide clearance of sliding guides, then guide clearance can be adjusted, but new precisely fitting guide elements must be manufactured and replaced when wear becomes excessive, which is time-consuming and expensive
Solution Approach 1:
The guide element is made adjustable through a screw mechanism that allows dynamic repositioning of the guide element relative to the guide surface. This enables the guide clearance to be adjusted without manufacturing new parts, resolving the contradiction between maintaining precision and avoiding complex replacement procedures.
Solution Approach 2:
The position of the guide element can be changed by adjusting the screw mechanism, which modifies the guide clearance parameter. This allows continuous adjustment of the guide clearance to compensate for wear without requiring new parts, thus maintaining precision while simplifying maintenance.
2Manufacturing precision
If wedge-shaped intermediate pieces with predetermined form are used to adjust guide clearance, then distance between sliding surfaces can be adjusted, but the inclined surface requires precise angle maintenance which makes manufacturing very expensive and complex
Solution Approach 1:
The adjustment mechanism is divided into separate components: a guide element with a guide surface and a screw mechanism. This segmentation allows the guide element to be a simple block without complex wedge shapes, reducing manufacturing complexity while maintaining adjustment precision through the screw mechanism.
Solution Approach 2:
The screw mechanism acts as an intermediary that converts rotational motion into linear displacement of the guide element. This intermediary mechanism enables precise adjustment of guide clearance without requiring the guide element itself to have complex wedge-shaped geometry with precise angles.
3Reliability
If sliding plates are pressed against each other to form a sliding guide, then guidance during downward stroke is achieved, but the sliding guide can jam if excessive or incorrect clearance exists
Solution Approach 1:
The adjustable guide element allows for feedback-based adjustment of guide clearance. The clearance can be adjusted based on observed performance and wear, ensuring optimal guidance conditions are maintained to prevent jamming while accounting for manufacturing tolerances.
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 allows for simple and cost-effective adjustment of guide play without replacing parts, maintaining precision and reducing production complexity by allowing for fine-tuned adjustments with minimal deviation from target dimensions.
Implementation Method 1
The retaining clamp holds the first and second wedge drive sections together during the stroke
Implementation Method 2
During a downward stroke, the first and second wedge drive sections are pressed together
Implementation Method 3
By adjusting the position of the adjustment surface, a guide element of the guide device can be moved along the positive guide surface
Implementation Method 4
no material can be added to the respective sliding surfaces when they wear down
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a wedge drive (1) having a first and a second wedge drive part (10, 20) and an adjustable guide apparatus, formed at least in part by the first and second wedge drive parts, which are movable, by means of a stroke directed in a stroke direction (Z), toward each other in a sliding direction (X, X', X") determined by the guide apparatus and at an angle to the stroke direction (Z), guided by the guide apparatus, wherein a guide part (32) of the guide apparatus is movable along a forced guidance surface (34) by adjusting the position of an adjustment surface (33) and a guide play can be set as a result, wherein a normal vector (N) of the forced guide surface (34) is at an angle to a plane of movement spanned from the stroke direction (Z) and the sliding direction (X, X', X").