Component Mounting Inspection Feedback for Positional Deviation Filtering
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Solution Overview
Problem
In existing component mounting systems, sudden positional deviations due to foreign substances or other factors can lead to a decrease in mounting accuracy when correction information is fed back based on positional deviation data, as all correction information is typically used without discrimination.
Innovation Solution
An inspection apparatus and component mounting system that detect positional deviations and determine whether they fall within a predetermined range, suspending the transmission of correction information to prevent inaccuracies, allowing only beneficial positional deviation data to be used for improving mounting accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If all positional deviation data is used for correction feedback, then mounting accuracy can be improved through continuous correction, but sudden deviations caused by foreign substances or other factors can lead to decreased mounting accuracy
Solution Approach 1:
The patent extracts and removes abnormal positional deviation data from the correction feedback process by comparing each deviation against a predetermined range. When deviations exceed this range (indicating foreign substances or anomalies), they are excluded from correction calculations. This selective extraction ensures only valid deviation data improves mounting accuracy without introducing instability from abnormal cases.
Solution Approach 2:
The patent implements a feedback mechanism where positional deviation information is continuously monitored, evaluated against predetermined ranges, and selectively fed back to the mounting apparatus. This controlled feedback loop maintains mounting accuracy improvement while preventing abnormal deviations from corrupting the correction process, thus resolving the reliability issue.
2Manufacturing precision
If positional deviation correction is always applied, then mounting precision can be maintained, but correction based on abnormal deviations can decrease accuracy
Solution Approach 1:
The patent extracts abnormal deviation data caused by foreign substances by comparing each measured deviation against a predetermined acceptable range. Deviations exceeding this range are identified as harmful and extracted from the correction feedback stream, preventing them from degrading mounting precision while allowing valid corrections to continue.
Solution Approach 2:
The patent converts the potentially harmful effect of abnormal deviations into a benefit by using the predetermined range as a filter. The presence of foreign substances causing large deviations is transformed from a harmful factor into a detectable anomaly that triggers exclusion from correction, thereby protecting mounting precision while maintaining the benefits of continuous correction for normal variations.
3Manufacturing precision
If correction information is transmitted for all positional deviations, then mounting accuracy can be continuously improved, but transmission of abnormal correction data can reduce overall accuracy
Solution Approach 1:
The patent extracts and removes abnormal positional deviation information from transmission to the mounting apparatus by evaluating each deviation against a predetermined range. Only deviations within acceptable parameters are transmitted as correction information, ensuring high quality data is sent while abnormal data causing accuracy reduction is excluded.
Solution Approach 2:
The patent applies different quality standards to different positional deviation data points. Deviations within the predetermined range are treated as valid correction information with high quality, while deviations exceeding the range are identified as abnormal and excluded. This local quality differentiation ensures only beneficial correction data is transmitted, maintaining both mounting accuracy and information quality.
Data Source
AI summary
There is provided an inspection apparatus which inspects a board on which a mounting apparatus mounts a component, including a detecting unit (an inspection process unit and an inspection camera) that detects inspection information including a positional deviation amount of the component which is mounted on the board, a determining unit that determines whether the detected positional deviation amount falls within a predetermined first range, a transmission unit that transmits the detected positional deviation amount to the mounting apparatus; and a determination unit that determines whether to transmit the detected positional deviation amount to the mounting apparatus. In addition, in a case where it is determined that the positional deviation amount falls within the first range and it is determined that a predetermined condition is satisfied, the determination unit suspends transmission of the positional deviation amount to the mounting apparatus.