Geometrical Conformation Unit for Vehicle Body Welding
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Solution Overview
Problem
Existing geometric conformation units for motor vehicle bodies are cumbersome, making it difficult for welding robots to access the interior of the shell during welding due to their large size and complex configuration.
Innovation Solution
A geometric conformation unit with a frame and symmetrically arranged pairs of conformers, each comprising holding means and locking mechanisms, allowing for easier assembly and access, with automatic tool changers for robotic handling and a design that keeps the rear of the vehicle clear for better accessibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional geometric conformation unit with a single large shell is used, then the body can be held securely during welding, but welding robots cannot easily access the interior of the shell
Solution Approach 1:
The conformation unit is divided into multiple independent conformers (front conformers and rear conformers) that can be positioned separately on the frame. This segmentation allows welding robots to access different areas of the body more easily while each conformer independently provides stable support for its designated section of the body during welding operations.
2Ease of operation
If multiple conformers are used to improve accessibility, then welding robots can access the body more easily, but the assembly becomes more complex
Solution Approach 1:
The conformation unit employs asymmetric positioning of conformers with respect to the vehicle's symmetry plane. The front conformers and rear conformers are positioned at different locations and orientations optimized for their respective welding zones, allowing asymmetric access paths for robots while maintaining overall geometric stability of the body during welding.
3Strength
If conformers extend horizontally toward the symmetry plane, then they can hold the body securely, but they block access to the rear of the body
Solution Approach 1:
The conformers are designed with a two-part structure: a first part extending vertically from the frame and a second part extending horizontally. This dimensional arrangement allows the conformers to provide secure holding capability through their vertical positioning while their horizontal extension is limited to avoid blocking rear access. The locking means connect the second parts without requiring full horizontal extension toward the symmetry plane.
Data Source
AI summary
The invention relates to a geometrical conformation unit (1) for a vehicle, including: a frame (2) for receiving the vehicle body (5); two pairs of conformers ((12, 14), (13, 15)) to be attached on the frame symmetrically relative to the vehicle symmetry plane, each conformer (12, 14, 13, 15) including holding means (16) for maintaining the portion of the body opposite which said conformer (12, 14, 13, 15) is attached, each pair of conformers ((12, 14), (13, 15)) including a front conformer (12, 13) maintaining the front portion of the body (5) and a rear conformer (14, 15) maintaining the rear portion of the body (5).