Axle Subframe Longitudinal Profile Joint With Embossed Stop
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Solution Overview
Problem
Existing axle subframes in vehicles often have structural limitations, particularly with welds acting as potential weak points in the connection of the longitudinal profile of the axle subframe, which are costly, weight, and manufacturing limitations in the connection of the axle subframe, which are not the best advantages in the connection of the axle subframe, which are not the best advantages in terms of manufacturing and component technology, especially in the event of a crash impact in the longitudinal axis of the vehicle.
Innovation Solution
A connection arrangement for an axle subframe with a longitudinal profile that uses inwardly shaped embossing to form a stop, which is integrated into the wall of the longitudinal profile section, providing a precise travel limit and preventing slippage during assembly and crash impacts, utilizing bolted fasteners for secure connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welds are used to connect longitudinal profile sections, then connection strength is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent extracts the stop function from a separate bulkhead plate component and integrates it directly into the longitudinal profile section wall through an embossing. This eliminates the need for separate stop components and their associated welding operations, thereby reducing manufacturing complexity while maintaining connection strength through the integrated embossing structure that provides both stopping and structural functions.
Solution Approach 2:
The patent merges the stop function with the longitudinal profile section wall by forming an embossing directly in the wall. This combines two functions (structural support and stopping) into a single integrated feature, eliminating the need for separate bulkhead plates and reducing the number of welding operations required, thus resolving the contradiction between connection strength and manufacturing complexity.
2Manufacturing precision
If bulkhead plates are used as stops, then positioning precision is improved, but weight and manufacturing cost increase
Solution Approach 1:
The patent extracts the stop function from a separate bulkhead plate and integrates it into the longitudinal profile section wall through an embossing. This eliminates the need for additional bulkhead plates, reducing component weight while maintaining positioning precision through the integrated embossing structure that provides a defined stop surface.
Solution Approach 2:
The patent merges the stop function with the longitudinal profile section wall by forming an embossing directly in the wall. This integration eliminates separate bulkhead plates, reducing overall weight while maintaining positioning precision through the defined geometry of the embossing that provides a reliable stop surface for the inserted longitudinal profile.
3Reliability
If separate stop components are used, then stopping function is improved, but device complexity increases
Solution Approach 1:
The patent extracts the stop function from separate bulkhead plate components and integrates it directly into the longitudinal profile section wall through an embossing. This reduces the number of separate components while maintaining the stopping function through the integrated embossing structure that provides a defined stop surface for the inserted longitudinal profile.
Solution Approach 2:
The patent merges the stop function with the longitudinal profile section wall by forming an embossing directly in the wall. This integration eliminates the need for separate stop components, reducing device complexity and component quantity while maintaining the stopping function through the defined geometry of the embossing that provides a reliable stop surface.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a connection of an axle subframe (1) to a longitudinal profile (4). To connect the longitudinal profile (4), a longitudinal profile section (6) of the longitudinal profile (4) is inserted into a longitudinal profile section (7) of the axle subframe (1). A stop (8) is provided in the longitudinal profile section (7) of the axle subframe (1). The longitudinal profile section (6) of the longitudinal profile (4) and the longitudinal profile section (7) of the axle subframe (1) are joined together. The stop (8) is formed in a wall (12) of the longitudinal profile section (7) of the axle subframe (1) by a cutting edge (17) on an inwardly shaped embossment (18).