Component Mounting System Feeder Evaluation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In component mounting systems, the accuracy of component feeding declines over time due to wear in movable parts, leading to increased suction errors and reduced production efficiency, as existing methods require imaging at the component supply position before each suction operation, thereby increasing mounting time.
Innovation Solution
A component mounting system with multiple nozzles that suck components from component supply devices, calculating a feeder evaluation value by summing suction position correction values and shift amounts to correct and evaluate suction positions, allowing for continuous production without declines in efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If component feeding accuracy is monitored by imaging at the component supply position before each suction operation, then measurement precision is improved, but productivity deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing the relationship between camera position variations and component pocket position variations before actual component feeding. This pre-established correlation model allows the system to estimate component feeding accuracy during production without performing time-consuming imaging operations at each suction cycle, thus maintaining measurement precision while preserving productivity
Solution Approach 2:
The patent uses copying by creating a virtual model of the component feeding accuracy through the established correlation between camera position and component pocket position. Instead of directly measuring each component's position through imaging during production, the system copies the positional relationship data and uses it to estimate actual feeding accuracy, significantly reducing measurement time while maintaining evaluation precision
2Manufacturing precision
If component feeding accuracy is continuously monitored, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The patent implements feedback by continuously monitoring component feeding accuracy through the established positional correlation model and using this information to adjust and maintain manufacturing precision. The system provides real-time feedback on feeder performance based on the correlation between camera and component pocket positions, enabling continuous precision maintenance without time-consuming direct measurements
Solution Approach 2:
The system performs preliminary establishment of the positional correlation model between camera and component pockets, which enables subsequent continuous monitoring to be performed rapidly without significant time loss. This pre-prepared reference framework allows the system to evaluate feeding accuracy continuously during production with minimal time penalty
Data Source
AI summary
A component mounting system includes a plurality of component supply devices (tape feeders) each of which supplies components from a component supply position and a component mounter that sucks the components from the component supply position of each of the plurality of component supply devices with a plurality of nozzles (suction nozzles) to install the components onto a board. A suction position correction value for correcting a suction position shift from a regular suction position when each of the nozzles sucks the components from the component supply position is calculated. The suction position is corrected based on the suction position correction value to suck the components. A suction position shift amount from the regular suction position is calculated. A feeder evaluation value, which is a sum of the suction position correction value and the suction position shift amount, is calculated for each of the plurality of component supply devices.