Pallet-Based Part Assembly for Flexible Multi-Model Automation
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Solution Overview
Problem
Conventional part assembling systems in vehicle assembly factories face limitations in logistics flexibility and high equipment investment costs due to the need for frequent conveyor line modifications to accommodate different types of parts.
Innovation Solution
A part assembling system that eliminates the use of conveyors by employing a station frame with a part assembling tool, positioners, a part conveying pallet, and a moving carriage, allowing for autonomous transportation and assembly of multi-model parts at designated stations, thereby enhancing flexibility and reducing equipment costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conveyor lines are used for part assembly, then parts can be conveyed and assembled automatically, but the system requires frequent modifications and remodelling to accommodate different part types, reducing logistics flexibility and increasing facility investment costs
Solution Approach 1:
The system divides the assembly line into independent modular stations, each capable of handling specific assembly tasks. The conveyor is segmented into discrete pallet positions that can be independently controlled, allowing flexible reconfiguration for different part types without modifying the entire line.
Solution Approach 2:
The system implements dynamic station activation where only the necessary stations are operational for each part type being assembled. The control system dynamically adjusts which stations are active based on the current assembly task, enabling quick adaptation to different part models without physical remodelling.
2Adaptability or versatility
If conveyor lines are modified to accommodate different part types, then multi-model parts can be assembled, but facility investment costs increase due to frequent remodelling requirements
Solution Approach 1:
Each assembly station is designed with universal fixtures and positioning mechanisms that can accommodate multiple part types. The stations are equipped with adjustable components and programmable controllers that enable them to perform the same assembly function for different part models, eliminating the need for dedicated stations for each part type.
Solution Approach 2:
The system changes operational parameters (station activation status, conveyor speed, positioning coordinates) rather than physical structure when switching between part types. This software-based reconfiguration allows multi-model assembly capability without the costly physical modifications that would otherwise be required.
3Productivity
If traditional conveyor systems are used, then automated part assembly can be achieved, but the system lacks flexibility for multi-model parts and requires high facility investment
Solution Approach 1:
Parts are pre-positioned and pre-oriented on the pallets during loading, and the system pre-configures which stations will be active before each assembly cycle begins. This preliminary preparation enables smooth automated assembly operations while maintaining flexibility for different part types, as the reconfiguration is done in advance rather than during operation.
Solution Approach 2:
The control system acts as an intermediary between the physical conveyor hardware and the assembly requirements for different part types. It translates high-level assembly instructions into specific station activation patterns and conveyor control commands, enabling automated assembly of various part models through software mediation rather than physical reconfiguration.
Data Source
AI summary
A part assembling system of an automation line includes: a station frame in which a part assembling tool is installed and that includes at least one mounting part; at least one positioner mounted on the at least one mounting part; a part conveying pallet including at least one positioning pin coupled to the at least one positioner; and a moving carriage that transports the part conveying pallet to a predetermined position on a floor of a process work area.