Component Mounting Head Placement With Conditional Imaging
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Solution Overview
Problem
Conventional mounting devices require excessive time for the mounting process due to the need for imaging and positional correction of non-light emitting components, which increases the overall processing time.
Innovation Solution
The mounting device incorporates a mounting head with a pickup member and an imaging section for initial positional correction, allowing for a first placement process with imaging, and a second placement process that omits imaging when the positional deviation is within a predetermined allowable range, thereby reducing the time required for the mounting process while maintaining accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If imaging process is performed for all components to correct positional deviation, then mounting accuracy is ensured, but mounting time increases
Solution Approach 1:
The patent changes the parameter of imaging necessity from a fixed requirement to a conditional one based on positional deviation magnitude. When positional deviation is within the allowable range, imaging is omitted; when it exceeds the range, imaging is performed. This dynamic parameter adjustment resolves the contradiction by adapting the imaging process to actual needs.
Solution Approach 2:
The patent applies partial imaging action rather than imaging all components uniformly. Only components with positional deviation exceeding the allowable range undergo imaging correction, while components within the range are placed without imaging. This partial action approach maintains mounting accuracy for critical cases while improving overall productivity.
2Manufacturing precision
If mounting head moves to imaging section for positional correction, then mounting accuracy is improved, but process time increases
Solution Approach 1:
The patent performs preliminary assessment of positional deviation using initial imaging before component pickup. This preliminary action identifies which components require subsequent imaging correction at the mounting head, avoiding unnecessary movements for components that are already within acceptable tolerances.
Solution Approach 2:
The patent extracts the imaging correction step from the mandatory process flow and makes it conditional. Only components with excessive positional deviation are subjected to the time-consuming imaging and correction process, while others are directly placed, thereby eliminating unnecessary time loss from head movements.
3Productivity
If imaging process is omitted for components within allowable positional deviation range, then mounting time is shortened, but mounting accuracy may be compromised
Solution Approach 1:
The patent establishes a clear threshold parameter (allowable positional deviation range) that determines whether imaging is necessary. This quantitative parameter change criterion allows the system to confidently omit imaging for components within the range without compromising accuracy, as the deviation is already acceptable for functional performance.
Data Source
AI summary
The mounting device comprises: a mounting head, having a pickup member picking up a component, which moves and places the component at a placement position by picking up the component with the pickup member from a supply section having a holding member holding the component; an imaging section configured to image the component held by the mounting head; and a control section configured to execute: a first placement process in which the component is picked up by the mounting head, positional deviation is corrected based on imaging results of the component captured by the imaging section, and the component is placed at the placement position, and a second placement process in which the component is placed at the placement position by omitting the imaging process by the imaging section at the mounting head when the positional deviation is within a predetermined allowable range.