Mounter Work Allocation by Accuracy Matching for PCB Throughput
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Solution Overview
Problem
Existing component mounters lack a systematic approach to allocate mounting work among multiple machines in a component mounting line, leading to inefficiencies in resource utilization and accuracy.
Innovation Solution
A work allocation device that acquires specified and required component mounting accuracies for each mounter, allocating tasks based on the type of component and mounting position, ensuring high-accuracy components are mounted by high-accuracy machines and low-accuracy components by low-accuracy machines, while considering multiple work modes and automatic accuracy setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple mounters are used to increase productivity, then the throughput of the component mounting line is improved, but it becomes difficult to allocate mounting work appropriately among the mounters
Solution Approach 1:
The system changes the parameter of accuracy matching by comparing required accuracy with specified accuracy. The allocating means assigns mounting work based on matching these accuracy parameters between components and mounters, enabling systematic work distribution across multiple mounters while maintaining quality standards.
2Manufacturing precision
If high-accuracy mounters are used for all components, then mounting precision is improved, but device utilization efficiency deteriorates
Solution Approach 1:
The system applies local quality by matching mounter accuracy capabilities with specific component requirements. Different mounters with different accuracy levels are assigned to different components based on their respective accuracy needs, rather than uniformly using high-accuracy mounters for all components. This optimizes both precision and resource utilization.
3Productivity
If work is allocated without considering accuracy matching, then allocation speed is improved, but mounting quality deteriorates
Solution Approach 1:
The system performs preliminary action by pre-acquiring and storing accuracy information for both mounters and components. The allocating means uses this pre-prepared data to quickly match components with appropriate mounters, enabling fast allocation decisions without compromising mounting quality through accuracy consideration.
Data Source
AI summary
A CPU of a management computer, when a work allocation processing routine is started, first, acquires a specified accuracy of each mounter, then acquires required accuracies of component types for components from a first to a last component to be mounted on a single board. Next, the CPU of the management computer performs allocation of mounting work of components from the first to the last component, and then ends the routine. Specifically, the CPU, for each component, allocates the mounting work of a given component to a mounter with a specified accuracy that satisfies the required accuracy for that component type.