Automated Wall Frame Assembly With Gantry-Guided Lumber Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The construction industry faces challenges with rising labor costs and the need for time and cost-efficient construction methods, particularly in assembling wood frame structures, where on-site construction errors and inefficiencies are common.
Innovation Solution
An automated wall frame assembly system comprising an advancer assembly with a conveyor system, a frame unit, and a gantry assembly with movable gantry tools to transport and attach lumber components, enabling off-site prefabrication of wall frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated equipment is used to assemble lumber components, then productivity and manufacturing precision are improved, but device complexity increases
Solution Approach 1:
The automated 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, and a frame unit that performs attachment operations. This segmentation allows each module to be optimized independently while working together to achieve high productivity through coordinated automation.
2Manufacturing precision
If lumber components are preassembled off site, then manufacturing precision is improved, but loss of time in transportation occurs
Solution Approach 1:
The system performs preliminary assembly actions by pre-positioning and pre-attaching lumber components to form complete wall frames at the fabrication facility. The advancer assembly continuously feeds pre-cut and pre-positioned frame members through the assembly process, ensuring that all joining operations are completed with high precision before the structure is transported to the construction site, eliminating on-site measurement and adjustment time.
3Manufacturing precision
If specialized labor is required for on-site construction, then manufacturing precision may be improved, but productivity decreases due to labor cost and availability constraints
Solution Approach 1:
The automated assembly system performs all precision joining operations through self-contained robotic mechanisms. The gantry assembly with its movable tools automatically positions and attaches frame members without human intervention, while the advancer assembly self-regulates the feed rate and positioning of components. This self-service capability allows the system to maintain high manufacturing precision while operating at continuous production speeds unaffected by labor availability or cost constraints.
Data Source
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.