Tolerance Compensation Assembly for Gauge-Free Gap Presetting
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Solution Overview
Problem
Existing tolerance compensation devices require the use of gauges to set desired gap dimensions, which is labor-intensive, time-consuming, and costly, and they often lose the gap dimension during servicing, necessitating a more efficient and reliable method for presetting distances between vehicle components.
Innovation Solution
A tolerance compensation device with a tubular fastening portion and a compensation means featuring a non-rotatable anti-rotation element, allowing for manual presetting of a distance between the base device and a contact wall, eliminating the need for gauges and providing a compact assembly space, using a right-hand thread configuration and a soft anti-loosening component to secure the position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a gauge is used to set the desired gap dimension in existing tolerance compensation devices, then the gap dimension can be set, but the process becomes labor-intensive, time-consuming, and costly
Solution Approach 1:
The anti-rotation element is pre-configured with a specific geometry that directly determines the gap dimension. During assembly, the compensation means is simply rotated until the anti-rotation element engages with its counterpart, automatically setting the desired gap without requiring separate gauge measurement or adjustment steps. This preliminary configuration of the anti-rotation element geometry enables direct setting of the gap dimension.
Solution Approach 2:
The tolerance compensation device is self-setting through the engagement of the anti-rotation element geometry. The specific shapes and dimensions of the anti-rotation element and its mating feature automatically establish the correct gap dimension when brought together, eliminating the need for external gauges or manual measurement tools. The device serves itself by using its own geometric features to define and maintain the desired gap.
2Measurement precision
If a gauge is used to set the desired gap dimension, then the gap can be measured and set, but additional tools and increased costs are required
Solution Approach 1:
The anti-rotation element and its mating feature on the compensation means form a self-contained measurement and setting system. The geometric relationship between these two elements inherently defines the gap dimension, eliminating the need for external gauges, calipers, or other measurement tools. The device uses its own structural features to perform what would traditionally require separate measurement instruments.
Solution Approach 2:
The measurement and setting function is extracted from the external gauge tool and integrated directly into the tolerance compensation device itself. The anti-rotation element geometry embeds the gap dimension setting capability within the device structure, removing the dependency on separate measurement tools and simplifying the overall assembly process.
3Reliability
If a conventional tolerance compensation device is used, then gap compensation is achieved, but the gap dimension is lost during servicing
Solution Approach 1:
The anti-rotation element is pre-configured with a specific geometric profile that encodes the desired gap dimension. This preliminary geometric configuration ensures that when the compensation means is reassembled after servicing, the same gap dimension is automatically restored simply by rotating the compensation means until the anti-rotation elements engage, without requiring retrieval of previous measurement data or complex adjustment procedures.
Solution Approach 2:
The geometric engagement features of the anti-rotation elements serve as a self-restoring mechanism. After servicing, the device automatically recalls the original gap dimension through the re-engagement of the pre-configured anti-rotation element geometry, eliminating the need for external measurement tools or specialized repair knowledge to restore the correct gap.
4Productivity
If manual presetting of distance is implemented, then assembly time is reduced, but the device structure becomes more complex
Solution Approach 1:
The tolerance compensation device is segmented into distinct functional components: the base device, the compensation means, and the anti-rotation element. This segmentation allows each component to be manufactured independently with standard tolerances, and the complex presetting function is achieved through the geometric relationship between segments rather than requiring a monolithic complex structure. The anti-rotation element itself is a simple geometric feature that enables the manual presetting function.
Data Source
AI summary
A tolerance compensation device includes a base device having a tubular fastening portion that includes an internal, right-hand thread for receiving a screw-like fastening element. A tubular connecting portion, for connecting to a compensation structure, has an outer jacket wall that includes an external thread for connecting to a compensation structure, and a compensation structure having a flange-like setting element. An inner jacket wall of the setting element includes a threading configured to correspond to the external thread, and a socket-like anti-rotation element is disposed in a through-opening of the setting element, and an outer jacket wall of the anti-rotation element is connected to an inner jacket wall of the tubular connecting portion in a non-rotatable manner. The compensation structure is configured for presetting a distance in axial direction between the base device and a contact wall of the compensation structure extending orthogonally to the axial direction.