Tolerance Compensation Threaded Joint for Play-Free Assembly
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Solution Overview
Problem
Existing devices for connecting components with tolerances fail to provide a play-free and easily demoldable connection, often resulting in undercuts and difficulty in manufacturing.
Innovation Solution
A device comprising a base element with segmented thread turns and clamping elements, allowing for a play-free connection through threaded, frictional, and clamping engagements, which can be easily demolded without undercuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional connection devices are used to bridge joint gaps with tolerances, then the components can be connected, but the connection produces play and is difficult to demold due to undercuts
Solution Approach 1:
The connection device is divided into a base element and a compensation element that can be separately molded and assembled. The base element contains a cavity with thread turns and clamping elements, while the compensation element is inserted into the cavity. This segmentation eliminates undercuts in both elements, enabling easy demolding while maintaining a play-free connection through threaded and clamping engagements.
2Manufacturing precision
If a threaded connection is used to achieve precise positioning, then play-free connection is achieved, but the structure becomes complex and difficult to manufacture
Solution Approach 1:
The device combines multiple connection functions into a single integrated structure. The base element with its cavity, thread turns, and clamping elements works together with the compensation element to provide both threaded engagement for precise positioning and clamping engagement for play-free connection. This merging reduces the number of separate components needed while achieving both precision and ease of manufacture.
3Reliability
If clamping elements are added to reduce play, then connection stability improves, but manufacturing complexity increases
Solution Approach 1:
The clamping elements are designed as separate, simple geometric features within the base element cavity rather than complex external components. They are positioned to engage with the compensation element in a straightforward manner, providing play-free connection through simple clamping action. This segmented design with simple geometries reduces manufacturing complexity while maintaining connection stability.
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
The solution enables a play-free, easily demoldable connection with sufficient torque, facilitating efficient assembly and reducing manufacturing complexity.
Implementation Method 1
The compensation element can be moved from a starting position into a compensating position by twisting, in particular by a first assembly movement, in particular a rotary movement, relative to the base element
Implementation Method 2
The clamping elements are preferably arranged between and/or below the first segment, designed as a thread turn segment or thread pitch segment
Data Source
AI summary
A device for compensating tolerances between two components to be interconnected may have at least one base element and a compensation element which is in or can be brought into threaded engagement. The base element may have a cavity having a number of first segments defining at least one thread turn and a number of second segments. The compensation element can be moved by a first rotary movement relative to the base element from a starting position into a compensating position and in the compensating position is in threaded engagement and/or frictional engagement and/or clamping engagement with the first segments and/or the second segments of the base element in order to receive a second rotary movement of a screw element.