Component Assembly Position Correction for Tolerance Compensation
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Solution Overview
Problem
Existing methods for producing products from multiple components are hindered by natural fabrication tolerances, leading to costly dimensional adjustments and the need for clamping tools to ensure accurate alignment.
Innovation Solution
A method involving measuring the actual geometry and position of components, comparing them to target geometries, calculating and adjusting the position of fixing means using a control unit, and arranging these fixing means to facilitate accurate joining without clamping tools, enabling a 'best fit' design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If clamping tools and dimensional adjustments are used to compensate for fabrication tolerances, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent implements a feedback mechanism where the actual position of components is measured and compared to target positions, deviations are calculated, and fixing means positions are adjusted based on this feedback to achieve accurate joining without complex clamping tools
Solution Approach 2:
The patent replaces the mechanical clamping tool system with a calculation-based positioning system that determines target positions of fixing means through mathematical calculations of deviations, eliminating the need for physical clamping devices
2Manufacturing precision
If clamping tools are used to ensure accurate alignment of components, then manufacturing precision is improved, but cost increases
Solution Approach 1:
The patent substitutes expensive mechanical clamping tools with a computational approach that calculates target positions based on measured deviations, reducing manufacturing costs while maintaining alignment accuracy
Solution Approach 2:
The system enables self-correction by measuring actual positions, calculating deviations from target positions, and automatically determining adjusted fixing means positions without requiring external intervention or expensive tooling
3Manufacturing precision
If dimensional adjustments on clamping assemblies are made to compensate for fabrication tolerances, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex adjustable clamping assemblies with a calculation-based system that determines target positions of fixing means through mathematical computation of geometric deviations, eliminating mechanical adjustment mechanisms
Solution Approach 2:
The patent performs preliminary measurement and calculation of target positions before the actual joining operation, allowing the fixing means to be positioned accurately in advance without requiring complex real-time adjustment mechanisms
Data Source
AI summary
A method for producing or assembling a product which includes at least two components, for example a motor vehicle or a motor vehicle module, by at least two fixing parts. The first fixing part is formed as a female part and the second fixing part is formed as a male part. The components disposed at a processing station and the first fixing part are measured by a measuring device, for example by a stationary camera or a camera fastened on a first or a second manipulator or photogrammetry bar having three cameras, and a deviation from a target geometry or target position is determined, and a corrected target position of the second fixing part is calculated on the basis of the determined deviation, such that the second fixing part is joined together with the first fixing part by the first manipulator and the product is thus produced.