Body Shell Fastening Interface With Reinforcing Surfaces
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Solution Overview
Problem
The construction of adequately fixed connections in car body shells is time-consuming and costly, with traditional methods like welding and riveting limited to specific regions, and existing fastening solutions are not cost-effective or efficient for assembling body shell modules in motor vehicle manufacture.
Innovation Solution
A fastening device comprising two connection pieces with component fastening surfaces, lateral reinforcing surfaces, and extension surfaces, allowing for flexible and cost-effective assembly of body shell modules using screw, rivet, weld, or adhesive connections, enabling tolerance compensation and easy replacement of modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional connection techniques (welding, gluing, riveting) are used to connect body shell modules, then connection strength is achieved, but production time increases and costs rise
Solution Approach 1:
The connection system is segmented into separate connection pieces that can be pre-assembled and then quickly connected to body shell modules. This allows modular assembly where connection pieces with integrated fastening elements (screws, rivets, or adhesive surfaces) are positioned and secured in discrete steps, reducing overall production time while maintaining connection strength through dedicated fastening zones.
Solution Approach 2:
Connection pieces serve as intermediary elements between body shell modules, providing standardized interfaces that simplify the connection process. These intermediaries integrate multiple fastening methods (mechanical fasteners or adhesive surfaces) into single components that can be quickly installed, reducing both production time and complexity compared to direct welding or gluing of modules.
2Strength
If traditional connection techniques are used, then adequate connection strength is achieved, but manufacturing costs increase
Solution Approach 1:
The connection pieces are designed as universal components that can be used across multiple body shell module connections. By standardizing the connection piece design with integrated fastening elements, the same component type can serve multiple connection points, reducing the variety of specialized brackets and custom fastening solutions needed, thereby lowering manufacturing costs while maintaining adequate connection strength.
3Productivity
If connection pieces are used for fastening body shell modules, then production efficiency improves, but connection strength may be insufficient without proper reinforcement
Solution Approach 1:
The connection pieces incorporate reinforcing surfaces that extend laterally from the primary connection interface. These reinforcing surfaces provide additional contact areas and structural support in dimensions perpendicular to the main fastening direction, enhancing connection strength through distributed load paths while maintaining the efficient, simple geometry needed for quick production assembly.
Data Source
AI summary
A device for fastening a first motor vehicle component to a second motor vehicle component. The device includes a first connection piece and a second connection piece. The first connection piece has a first component fastening surface for fastening to the first motor vehicle component, a first connection piece fastening surface which is perpendicular to the first component fastening surface, and first reinforcing surfaces which each connect a lateral end edge of the first component fastening surface to a lateral end edge of the first connection piece fastening surface. The second connection piece includes a second component fastening surface for fastening to the second motor vehicle component, a second connection piece fastening surface which is perpendicular to the second component fastening surface, and second reinforcing surfaces which each connect a lateral end edge of the second component fastening surface to a lateral end edge of the second connection piece fastening surface. The first connection piece and the second connection piece are connected to each other at an interface between the first connection piece fastening surface and the second connection piece fastening surface.