Automated Wall Frame Assembly with Overhead Gantry Feed
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The construction industry faces challenges in efficiently assembling lumber components on-site due to rising labor costs and the need for specialized labor, which can lead to errors and increased construction time.
Innovation Solution
An automated wall frame assembly system comprising a conveyor system, gantry assembly, and various tooling for precise assembly and attachment of lumber components, including a saw for cutting, to form wall frames efficiently and accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated assembly equipment is implemented, then productivity and manufacturing precision are improved, but device complexity increases
Solution Approach 1:
The automated wall frame assembly system is divided into distinct functional modules: an advancer assembly that transports frame members along an assembly axis, a gantry assembly that positions components vertically, and a frame unit that performs attachment operations. This segmentation allows each module to specialize in specific tasks, improving overall productivity while making the complex system more manageable and maintainable through modular architecture.
Solution Approach 2:
The gantry assembly serves as an intermediary mechanism between the overhead storage/retrieval system and the advancer assembly. It receives frame members from above, positions them precisely, and delivers them to the advancer assembly for attachment. This intermediary structure resolves the complexity by creating a clear interface between vertical and horizontal material flow, enabling automated operation without requiring direct complex coordination between all system components.
2Manufacturing precision
If specialized labor is used for on-site construction, then manufacturing precision is improved, but loss of time and productivity are worsened
Solution Approach 1:
The system performs preliminary actions by pre-positioning frame members on the advancer assembly and preparing the gantry assembly with required components before actual wall frame assembly begins. The advancer assembly continuously feeds pre-positioned frame members to the attachment point, ensuring that all materials are ready and precisely located before assembly operations commence, thereby eliminating on-site measurement and preparation time while maintaining high precision through automated positioning.
Solution Approach 2:
Manual mechanical operations performed by specialized laborers are replaced with automated mechanical systems. The advancer assembly uses automated conveyance mechanisms to transport and position frame members with precision, while the gantry assembly employs automated retrieval and positioning systems. This substitution eliminates the time loss associated with manual handling, measuring, and positioning, while maintaining or exceeding the precision previously achieved only through skilled labor.
3Loss of time
If automated assembly systems are deployed, then loss of time is reduced, but device complexity increases
Solution Approach 1:
The advancer assembly is designed as a universal platform that can handle multiple types of frame members (studs, plates, headers) through standardized attachment mechanisms. The gantry assembly serves multiple functions: retrieving frame members from storage, positioning them vertically, and delivering them to the advancer assembly. This multi-functionality reduces the need for separate specialized equipment for each operation, thereby reducing overall device complexity while maintaining automated speed and efficiency.
Solution Approach 2:
The system incorporates self-service features where the advancer assembly automatically advances frame members to the attachment position without manual intervention, and the gantry assembly automatically retrieves and positions components based on the assembly sequence. The frame unit performs attachment operations autonomously as frame members are presented to it. This self-service capability eliminates the need for complex control systems coordinating every individual action, reducing device complexity while maintaining rapid automated assembly.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An automated wall frame assembly system for use in assembling a wall frame includes an advancer assembly including a conveyor system configured to transport first frame members along an assembly axis to an output of the conveyor system. A frame unit is disposed generally at the output of the conveyor system and is configured to receive the first frame members from the conveyor system and attach a second frame member to the first frame members. A gantry assembly is disposed above the advancer assembly. The gantry assembly includes a gantry frame and at least one gantry tool movably attached to the gantry frame. The gantry tool is operable to deliver the second frame member to the advancer assembly from a location above the advancer assembly for being attached to the first frame members.