Component Mounting System Position Offset Management
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Solution Overview
Problem
Conventional component mounting systems face challenges in accurately identifying and addressing position offsets in the component suction and loading processes due to factors like aged deterioration of suction nozzles, making it difficult to maintain positional accuracy and quality of the component loading board.
Innovation Solution
A component mounting system equipped with a management device that acquires and displays suction position offset data, loading position offset data, and associated parameter information, allowing for the identification of generating factors for position offsets through data analysis and visualization, enabling effective calibration and corrective measures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If calibration is performed based on positional difference between component central position and target loading position, then positional accuracy of component loading is improved, but the generating factors for position offset (such as suction nozzle deterioration) cannot be identified
Solution Approach 1:
The patent segments the position offset into two independent components: suction position offset (between component central position and suction nozzle) and loading position offset (between component loading position and target loading position). By separating these offsets, the system can analyze each factor independently, allowing identification of generating factors specific to the suction process while maintaining overall positioning accuracy.
Solution Approach 2:
The patent introduces an intermediary analysis layer through the management device that collects and correlates multiple parameters (suction position offset, loading position offset, suction nozzle usage hours, feeder parameters) to identify generating factors. This intermediary data processing layer enables root cause analysis without disrupting the actual mounting process.
2Measurement precision
If image recognition is performed at standstill position, then positional accuracy is improved, but the system cannot detect positional offset during movement which may be caused by suction nozzle deterioration
Solution Approach 1:
The patent enables continuous detection of position offsets throughout the entire component mounting process, from suction through loading and movement. By maintaining detection during movement rather than only at standstill positions, the system continuously monitors for changes in positional relationships that may indicate suction nozzle deterioration or other generating factors.
Solution Approach 2:
The management device establishes a feedback mechanism that continuously collects position offset data and correlates it with operational parameters (suction nozzle usage hours, feeder status). This feedback loop enables real-time identification of generating factors by analyzing trends in position offset data alongside operational parameters, allowing proactive maintenance decisions.
3Difficulty of detecting and measuring
If multiple parameters are collected and correlated to identify generating factors, then diagnostic capability is improved, but device complexity increases
Solution Approach 1:
The management device is designed as a multi-functional system that performs data collection, storage, analysis, and visualization of multiple parameters (suction position offset, loading position offset, suction nozzle usage hours, feeder parameters). By consolidating these functions into a single integrated device, the system achieves comprehensive diagnostic capability without proportionally increasing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables accurate identification and correction of position offsets, improving the quality of the component loading process by providing detailed data analysis and visualization tools to address the generating factors, thus enhancing the positional accuracy and reliability of the component mounting process.
Implementation Method 1
a suction nozzle that executes a component suction process of sucking the component
Data Source
AI summary
In a management device, a management storage unit accumulates and stores management data in which suction position offset data, loading position offset data, and parameter information are associated with each other. A management control unit causes a management display unit to simultaneously display suction position offset distribution indicating distribution of a data group of the suction position offset data and loading position offset distribution indicating distribution of a data group of the loading position offset data. The management control unit controls the management display unit such that, when a command to select one or more specific position offset data from the data group of one position offset distribution is input, attention data corresponding to the specific position offset data is displayed in a different display mode from a display mode of residual data in the data group of another position offset distribution.