Assembly Tool Marking Device for Fastener Sequence Verification
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Solution Overview
Problem
Existing assembly tools cannot retroactively verify if the correct assembly sequence has been followed during the assembly of multiple fastening elements, as the sequence is predefined and lacks documentation of the assembly process.
Innovation Solution
An assembly tool equipped with a marking device that applies different types of markings to fastening elements based on predefined parameters, allowing for retrospective verification of the assembly sequence through various marking techniques such as shape cutting, laser machining, or applying paint/lacquer, which can be controlled by a unit connected to an assembly line for automated operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a marking device is added to document assembly completion, then assembly sequence verification capability is improved, but device complexity increases
Solution Approach 1:
The marking device integrates multiple marking capabilities (paint spray, shape cutting, laser machining) into a single assembly tool, allowing one device to perform documentation functions that would otherwise require separate equipment. This multi-functionality resolves the contradiction by consolidating verification capabilities within the existing assembly tool framework.
Solution Approach 2:
The system varies marking parameters (type, position, pattern) based on assembly sequence requirements. Different marking types document different assembly stages or sequences, allowing the same marking device to provide differentiated verification information without requiring multiple separate devices, thus improving reliability while controlling complexity.
2Loss of information
If multiple marking types are used to document different connection procedures, then assembly sequence documentation capability is improved, but manufacturing precision requirements increase
Solution Approach 1:
Different marking types are applied to different fastening elements or different locations based on their specific assembly requirements. Each marking type (paint spray, shape cutting, laser machining) is optimized for its specific application context, allowing accurate documentation of different connection procedures while maintaining appropriate precision standards for each marking method.
Solution Approach 2:
The system uses standardized marking patterns and designs that can be repeatedly applied across multiple fastening elements. These standardized markings serve as reliable copies or indicators of assembly completion, ensuring consistent documentation without requiring high precision for each individual marking variation.
3Productivity
If automated marking is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The marking function is merged with the existing assembly tool operation. The control unit integrates the marking activation with the assembly process flow, so that marking is automatically triggered when assembly milestones are reached. This merging eliminates the need for separate documentation equipment or manual intervention, improving productivity while leveraging existing tool infrastructure to control complexity.
Solution Approach 2:
The assembly tool automatically performs the marking function based on pre-programmed assembly sequence parameters. The system self-documents the assembly process without requiring external verification equipment or manual operator action for each marking event, thereby improving productivity through automation while keeping the control system integrated within the tool itself.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the retrospective verification of the assembly sequence, facilitating the identification of deviations and ensuring correct assembly by generating distinct markings that differ in size, shape, depth, color, or position, thus ensuring accurate documentation of the assembly process.
Implementation Method 1
a paint spray gun applies a paint spray jet through the screwdriver tool socket onto the screw
Implementation Method 2
laser machining
Implementation Method 3
shape cutting
Data Source
AI summary
An assembly tool is provided for connecting a fastening element to at least one component. The assembly tool has a marking device, which is designed to apply a first type of marking to a fastening element when a first connecting step is finished, and to apply a second type of marking to a fastening element when a second connecting step is finished.