Detachable Vehicle Outer Panel Assembly for Doorless Body Access
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Solution Overview
Problem
Conventional vehicle body assembly processes face challenges in accessing and assembling components, such as outer panels, in areas without doors, leading to inefficiencies and increased complexity due to the need for multiple tools and components.
Innovation Solution
A modular outer panel design featuring flange portions that can be easily attached and detached from the vehicle body frame, incorporating a fastening member and sealing members to ensure watertightness and airtightness, along with a method for forming these panels using a hemming process and die ejecting sections to reduce part count and weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional welding guns, sealer guns, and assembly components are used in areas without doors, then assembly and painting processes cannot be performed fluently, but increasing accessibility requires additional components and complexity
Solution Approach 1:
The outer panel is divided into multiple detachable segments (first outer panel and second outer panel) that can be separately removed. This segmentation allows welding guns, sealer guns, and assembly components to access the doorless areas without requiring additional complex mechanisms, as each segment can be independently positioned or removed to provide clear access paths.
Solution Approach 2:
The outer panel system transitions from a fixed, permanent structure to a dynamic, reconfigurable structure. The detachable outer panels can be removed during assembly and painting processes, providing temporary access to doorless areas, and then reinstalled afterward. This dynamic approach eliminates the need for permanent access openings or complex adjustable mechanisms.
2Productivity
If multiple separate components are used to achieve accessibility, then assembly and painting processes can be performed, but the number of parts increases and weight increases
Solution Approach 1:
The first and second outer panels are merged into a single integrated panel structure that functions as one cohesive component during normal operation. This merged design provides the accessibility benefit of having separable sections while avoiding the penalty of having multiple independent parts, as the panels share common support structures and fastening mechanisms.
Solution Approach 2:
The detachable outer panel structure serves multiple functions: it provides accessibility to doorless areas during manufacturing processes, maintains structural integrity during vehicle operation, and can be easily reconfigured for different assembly scenarios. This multi-functionality eliminates the need for dedicated access components, reducing the total part count while improving productivity.
3Ease of operation
If detachable outer panels are used to improve accessibility and reduce part count, then assembly and painting processes become more fluent, but ensuring watertightness and airtightness becomes more challenging
Solution Approach 1:
The sealing structures are pre-integrated into the outer panel design, with sealing members positioned at the interfaces between panels and the support structure. This preliminary arrangement ensures that watertightness and airtightness are maintained from the outset, eliminating the need for complex sealing procedures after panel detachment and reattachment.
Solution Approach 2:
Sealing members act as intermediary elements between the detachable outer panels and the support structure. These intermediaries maintain the watertight and airtight barrier even when panels are detached or repositioned, as the sealing members can be temporarily disengaged and reengaged without compromising the overall seal integrity of the vehicle body.
Data Source
AI summary
An embodiment outer panel assembled to a vehicle body frame includes an outer plate portion, a plurality of flange portions extending from an edge portion of the outer plate portion and bent toward the vehicle body frame, and a fastening member installed in the flange portions and engaged to the vehicle body frame.