Internal Vehicle Body Jig for Welding Access
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Solution Overview
Problem
Existing vehicle body manufacturing apparatuses face challenges in positioning workpieces and creating a clear working space on the side of the vehicle body due to external support mechanisms, which hinder the movement of welding guns and impede efficient assembly and welding processes.
Innovation Solution
The apparatus employs an upper jig frame with paired frame members that are inserted into the vehicle body, a coupling mechanism for internal coupling and decoupling, and a clamp mechanism supported on the frame to position the vehicle body from the inside, allowing for a working space on the side and precise positioning of workpieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If clamp jigs are supported from the outside of the vehicle body by triaxial changeover units and articulated robots, then positioning of workpieces can be achieved, but mechanical sections impede movement of welding guns to welding locations
Solution Approach 1:
The clamp jigs are inverted from external support to internal support, with frame members inserted through openings in the vehicle body and clamp mechanisms positioned inside the vehicle body to clamp workpieces from the interior side, thereby clearing the external working space for welding guns
Solution Approach 2:
The support structure transitions from a two-dimensional external arrangement to a three-dimensional internal configuration, utilizing the interior space of the vehicle body for positioning and clamping operations
2Ease of operation
If frame members are inserted into the vehicle body through openings, then working space on the side is created, but coupling and decoupling of paired frame members must be achieved
Solution Approach 1:
The upper jig frame is segmented into paired frame members that can be independently inserted and coupled, allowing modular assembly and disassembly while maintaining the overall structural integrity when coupled
Solution Approach 2:
The coupling mechanism utilizes nested structures where coupling members engage with coupling holes, allowing one component to be inserted into another for secure connection while enabling easy decoupling when needed
Data Source
AI summary
A vehicle body manufacturing apparatus includes upper jig frames having frame members that are paired with each other and are insertable into the inside of the vehicle body through respective left and right openings of the vehicle body, a coupling mechanism that freely couples and decouples the ends of the paired frame members, and a clamp mechanism that is supported on the upper jig frame and positions the vehicle body from the inside of the vehicle body.