Joist Assembly System Dynamic Component Retrieval
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Solution Overview
Problem
Existing joist assembly systems lack dynamic retrieval and precise positioning of components, leading to inefficiencies in the assembly process.
Innovation Solution
A joist assembly system comprising material handling systems, welding systems, and a rigging table system that enables dynamic retrieval, precise positioning, and assembly of joist components, including chords and webs, using robots and automated processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional jigs or supports are used to hold chord members and web members together, then the assembly process can be performed manually, but the retrieval and positioning of components lacks dynamics and precision
Solution Approach 1:
The system is divided into distinct functional modules: material handling systems for retrieval, positioning systems for precise placement, rigging tables for support, and welding systems for assembly. Each module operates independently but coordinates through centralized control, enabling dynamic component retrieval and precise positioning while maintaining manageable system complexity through modular design
Solution Approach 2:
Manual mechanical operations are replaced with automated material handling systems that use sensors, actuators, and control systems to retrieve and position chord members and web members. The positioning system employs automated mechanisms rather than manual manipulation, achieving superior precision and dynamics while being managed through integrated control software
2Productivity
If manual assembly methods are used with traditional tables, then the system is simpler to operate, but assembly time and production efficiency are reduced
Solution Approach 1:
The material handling systems automatically retrieve components, the positioning systems automatically place components in correct positions, and the welding systems automatically perform joining operations. The system serves itself through automated sequences coordinated by control systems, eliminating manual labor for retrieval and positioning while maintaining ease of operation through centralized control interfaces
Solution Approach 2:
The automated material handling systems enable continuous operation by constantly retrieving and positioning components without interruption. The welding systems operate continuously on positioned components, creating an uninterrupted assembly flow that maximizes productivity while the control system manages the entire continuous process
3Measurement precision
If traditional material delivery methods like forklifts or conveyor belts are used, then the equipment is simpler, but dynamic retrieval and precise positioning of components cannot be achieved
Solution Approach 1:
The material handling system is segmented into retrieval mechanisms, transport mechanisms, and positioning mechanisms that work in sequence. Each segment handles a specific aspect of component delivery, enabling precise positioning through coordinated operation while keeping individual subsystems manageable in complexity
Solution Approach 2:
Sensors and detection systems monitor the position and status of chord members and web members throughout the retrieval and positioning process. This feedback is fed to the control system, which adjusts the material handling and positioning mechanisms in real-time to achieve precise component placement accuracy
Data Source
AI summary
A joist assembly system that is structured for dynamic retrieval of components, dynamic and precise positioning and location of retrieved components, assembly of the components to form a joist, and delivery of the assembled joist. The joist assembly system has a plurality of material handling systems, a plurality of welding systems, and a rigging table system. The material handling systems are structured to load and position the components such as chords and webs onto the rigging table. The rigging table in turn supports the chords or webs. Subsequently, the plurality of welding systems weld the webs to the chords to form the joist.