Assembly Line Tool Localization for Precise Chassis Alignment
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Solution Overview
Problem
Current assembly line systems lack effective quality assurance for ensuring that operators use tools correctly, leading to potential errors in the assembly of heavy-duty vehicles.
Innovation Solution
An assembly line arrangement featuring a movable trolley guided by roof-mounted rails with range detectors and an image capturing unit, which determines the position of the trolley and vehicle chassis for precise alignment and torque application, ensuring correct usage of the assembly line tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional tracking methods (pre-recorded images, live camera feeds, position sensors) are used to monitor tool position and usage, then basic tracking capability is provided, but measurement precision and reliability of tool localization are insufficient
Solution Approach 1:
The patent replaces traditional mechanical tracking systems (camera feeds, position sensors) with an RFID-based electromagnetic field detection system. The RFID reader detects the tool's position and usage state through electromagnetic fields, providing more precise measurement without the complexity of visual tracking systems.
Solution Approach 2:
The patent introduces RFID tags as intermediary elements attached to tools and corresponding RFID readers in the system. These intermediaries enable automatic, precise detection of tool position and usage state without requiring direct line-of-sight or complex sensor arrays, thereby improving measurement precision while maintaining system simplicity.
2Reliability
If no quality check system is implemented to verify operator compliance with predetermined sequence, then operational simplicity is maintained, but reliability of correct assembly is compromised
Solution Approach 1:
The patent implements an RFID-based feedback system that automatically monitors tool usage and compares it against the predetermined assembly sequence. The system provides real-time feedback to verify operator compliance, ensuring reliability of correct assembly while maintaining operational simplicity through automatic detection rather than manual verification.
Solution Approach 2:
The system enables self-service quality assurance where the RFID tags and readers automatically track and verify tool usage without requiring additional manual inspection or complex quality check equipment. The tool itself carries its identification and the system automatically verifies its proper use in the assembly sequence.
3Productivity
If manual monitoring of tool usage is used, then system simplicity is maintained, but productivity and measurement precision of tool localization are reduced
Solution Approach 1:
The patent replaces manual monitoring with an automated RFID detection system that uses electromagnetic fields to track tool position and usage. This substitution improves both productivity through automatic continuous monitoring and measurement precision through the accuracy of RFID detection, eliminating the trade-off present in manual systems.
Solution Approach 2:
The RFID tags attached to tools serve as intermediaries that enable precise, automated location tracking. These tags work with readers positioned along the assembly line to provide continuous, accurate measurement of tool position and usage state, improving both productivity and measurement precision simultaneously.
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
This solution enhances the accuracy and quality of assembly by providing a simple and effective location method for assembly line tools, ensuring correct usage and torque application, adaptable to various environments.
Implementation Method 1
one or more second range detectors mounted on the trolley in order to determine the location of a chassis of a vehicle on an assembly line
Implementation Method 2
the one or more first range detectors are laser range meters
Data Source
AI summary
An assembly line arrangement includes an assembly line tool attached to a movable trolley guided by roof-mounted rails. The arrangement has one or more first range detectors mounted on the roof-mounted rails and/or trolley in order to determine the position of the trolley in a plane defined by the roof-mounted rails, and one or more second range detectors mounted on the trolley in order to determine the location of a chassis of a vehicle on an assembly line.